Interactions on record — worth a quick check against your medications. Check your meds →
Dietary supplement

MY-Immune Defense Ingredients & Drug Interactions

by Nature's Sunshine

Powder Category: Botanical With Nutrients
Most serious interaction: Moderate
The interaction bottom line Most serious interaction: Moderate

MY-Immune Defense is a dietary supplement by Nature's Sunshine with 8 active ingredients. Its ingredients are commonly taken for bone health and osteoporosis, correcting vitamin d deficiency, immune system support.Based on those ingredients, 2,207 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Dietary Fiber, Vitamin D, Reishi Mushroom. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

HelloPharmacist Scorecard of MY-Immune Defense by Nature's Sunshine

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

What’s inside

Low disclosure
Ingredient Transparency · database check
Low

Most active ingredients don't disclose an individual amount — you can't tell how much of each you're getting.

Why this rating?
  • The label discloses an exact amount for 2 of its 8 active ingredients.
  • “Organic Mushroom Blend” is a proprietary blend — the label doesn't break down how much of each component you get.

MY-Immune Defense contains seven active ingredients designed to support immune function. Vitamin D is included for bone and immune health, while the product features an organic mushroom blend made up of cordyceps, turkey tail, reishi, chaga, shiitake, and agaricus mushrooms — all traditional fungi used in wellness protocols.

The powder contains no inactive ingredients listed.

Does it work?

Moderate evidence
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Moderate

Some clinical evidence supports this product's ingredients for its stated purpose, but it isn't conclusive.

Why this rating?
  • The label markets this product for: Immune system defense.
  • We looked for evidence on: Common cold, Coronavirus disease 2019 (COVID-19), Chemotherapy-induced leukopenia, Cancer-related fatigue, Immune function, Respiratory health — and 1 related terms.
  • The strongest evidence on file: Turkey Tail Mushroom is rated "Possibly Effective" for Cancer (Natural Medicines).
  • Also on file: Vitamin D is rated "Possibly Effective" for Coronavirus disease 2019 (COVID-19).
  • Also on file: Black Psyllium is rated "Insufficient Reliable Evidence To Rate" for Cancer.

Vitamin D is effective for several bone and mineral conditions — rickets, osteomalacia (soft bones), renal bone disease, and familial hypophosphatemia. For the mushroom ingredients, the evidence is much thinner.

Turkey tail mushroom shows possibly effective evidence for cancer support, but cordyceps, reishi, chaga, shiitake, and agaricus have insufficient reliable evidence to rate them for any specific condition. The product as a whole is marketed for immune defense, but we hold no effectiveness rating for that claim in our data.

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 8 of the 8 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 8 of 8.
  • General safety write-ups exist for 8 of 8.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Vitamin D is generally well tolerated at recommended doses, though very high doses over time can cause toxicity — watch for symptoms like excessive thirst and weakness. It's often used during pregnancy at recommended amounts but only under your doctor's guidance, and it's considered acceptable while breastfeeding at normal doses.

The mushroom ingredients are generally well tolerated short-term, though long-term safety isn't well studied for most of them. Cordyceps may cause abdominal discomfort, constipation, or diarrhea in some people.

Reishi can cause dizziness, dry mouth, itching, nausea, or stomach upset. Chaga carries a rare risk of kidney problems if consumed in very large amounts because of its oxalate content.

Shiitake is safe as a food but raw mushrooms can cause a skin reaction, and concentrated supplements should be used cautiously. Agaricus may cause abdominal discomfort, diarrhea, or nausea, and rare cases of liver injury have been reported in cancer patients.

None of the mushroom ingredients have adequate safety data for pregnancy or breastfeeding — the safety notes advise against their use during these times.

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 8 of the 8 matched ingredients can interact with medications — Black Psyllium, Cordyceps, Turkey Tail Mushroom, Shiitake Mushroom, Reishi Mushroom, among others.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; immunosuppressants / transplant drugs; diabetes medications; heart-rhythm medications; lithium.
  • For scale: 2,208 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Before taking this product, double-check with your pharmacist if you use blood thinners or antiplatelet drugs (like warfarin or aspirin), diabetes medications, blood pressure medication, thiazide diuretics, heart rhythm drugs like digoxin or verapamil, the cholesterol drug atorvastatin, or immunosuppressants like cyclosporine. If you're on chemotherapy — especially cyclophosphamide or tamoxifen — mention this supplement to your oncology team first.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFormula with limited ingredient disclosure with some supporting evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

This product is best considered by people looking to support immune function with whole-food mushrooms and vitamin D, but it's not for you if you take blood thinners, diabetes medications, heart rhythm drugs, blood pressure medication, or chemotherapy — or if you're pregnant or breastfeeding. Talk with your pharmacist before starting, especially if you're on any prescription medications.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 8 of 8 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Jul 25, 2024.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about MY-Immune Defense, straight from the product label.

Brand Nature's Sunshine
Barcode (UPC) 099904224704
Net contents 3.17 Ounce(s); 90 Gram(s)
Market status On market
Date entered into DSLD Jul 25, 2024
DSLD ID 313124
Product type Botanical With Nutrients
Supplement form Powder
Dietary claims / uses Nutrient, All Other, Structure/Function
Intended target group(s) Vegan, Vegetarian, Adult (18 - 50 Years), Kosher, Women (not pregnant or lactating), Organic
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for MY-Immune Defense by Nature's Sunshine, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
3 Gram(s)
Maximum serving Sizes:
3 Gram(s)
Servings per container
30
UPC/BARCODE
099904224704
IngredientAmount% DV
Calories10 Calorie(s)--
Total Carbohydrates2 Gram(s)1%
Vitamin D15 mcg75%
Dietary Fiber0.5 Gram(s)2%
Cordyceps Mushroom0 NP--
Organic Mushroom Blend0 NP--
Turkey Tail Mushroom0 NP--
Reishi Mushroom0 NP--
Chaga Mushroom0 NP--
Shiitake Mushroom0 NP--
Agaricus Mushroom0 NP--

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Brand IP Statement(s)

Natures Sunshine Herbal Experts since 1972

General Statements

New look! Same great product

We are committed to you and our planet. Scan code to learn more.

Formula

Six mushroom complex with natural Vitamin D

MY-Immune Defense Mushrooms are well known for their high nutritional content, and their health benefits have been recognized in numerous clinical studies. Formulated with the help of expert mycologists, MY-Immune Defense features certified organic, non-GMO, vegan, gluten free and kosher ingredients to provide premium holistic immune support.

Formulated with the help of expert mycologists, MY-Immune Defense features certified organic, non-GMO, vegan, gluten free and kosher ingredients to provide premium holistic immune support.

MY-Immune Defense provides naturally-occurring polysaccharides (beta-glucans), amino acids and a powerful dose of vitamin D to enhance its immune-supporting properties and deliver superior antioxidant and immune benefits.

Formulation

Immune system defense

USDA Organic

Formulated with the help of expert mycologists, MY-Immune Defense features certified organic, non-GMO, vegan, gluten free and kosher ingredients to provide premium holistic immune support. Organic Mushroom Blend

Formulated with the help of expert mycologists, MY-Immune Defense features certified organic, non-GMO, vegan, gluten free and kosher ingredients to provide premium holistic immune support.

Formulated with the help of expert mycologists, MY-Immune Defense features certified organic, non-GMO, vegan, gluten free and kosher ingredients to provide premium holistic immune support.

Daily Immune Boost! Fortify your immune system with a potent blend of six organic mushrooms that nutritionally support immune function.

Nature's Sunshine uses natural source materials that are subject to color variation.

Certified organic by UDAF

FDA Statement of Identity

Dietary Supplement

Seals/Symbols

USDA Organic

Guaranteed Pure

Suggested/Recommended/Usage/Directions

Recommended use: Mix one scoop (3g) of My-Immune Defense with your favorite smoothie, juice or recipe for a nourishing boost of organic mushroom goodness! Use daily for best results.

Precautions

Do not take this product if you are pregnant, think you may become pregnant, or if you are breastfeeding.

This bag has been sealed for your protection. Do not use if the seal is open or is damaged.

Storage

The weight stated on this bag is correct; product settles during shipping.

See for yourself

MY-Immune Defense by Nature's Sunshine label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

What’s inside

The Ingredients in MY-Immune Defense by Nature's Sunshine

These are the 8 active ingredients this product is made of. Select any to open its full monograph.

Serving size3 Gram(s) Dosage formPowder Servings per container30 Amounts shown are per serving.

Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.

Vitamin D

Interacts with
715 drugs
15 mcg per serving

Vitamin D is a fat-soluble vitamin that helps your body absorb calcium and is important for healthy bones, muscles, and immune function. Many people,...

Vitamin D monograph & interactions

Dietary Fiber

Interacts with
2,025 drugs
0.5 Gram(s) per serving

Black psyllium is a soluble-fiber supplement made from the seeds of a Plantago plant, used mostly to ease constipation and support digestive health. I...

Dietary Fiber monograph & interactions

Organic Mushroom Blend

0 NP per serving
Interaction report

MY-Immune Defense by Nature's Sunshine Drug Interactions

Want to check YOUR meds against MY-Immune Defense?

Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.

Go to the checker
2,207Drugs
672 Moderate 1,535 Minor

Ingredients driving the most interactions

Vitamin D 715

Each ingredient & the kinds of drugs it affects

For each ingredient in MY-Immune Defense with known interactions, here are the types of medications they can affect. Open any type for the detail — or search your exact drug in the checker above.

Dietary Fiber7 drug types · 2,025 drugs

Carbamazepine (Tegretol)

Theoretically, black psyllium might reduce the effects of carbamazepine and increase the risk for convulsions.
Theoretically, black psyllium might reduce carbamazepine absorption. A preliminary study using blond psyllium reported decreased carbamazepine bioavailability due to binding of the drug to psyllium, as well as reduction of available fluid in the gut for dissolution of the drug. This interaction may also occur with black psyllium.

Likelihood Probable Evidence D
Lithium

Theoretically, taking black psyllium at the same time as lithium might reduce lithium absorption.
The fiber in black psyllium might reduce lithium absorption and plasma levels. Some case reports describe a reduction in plasma lithium levels with concomitant administration of blond psyllium. This was reversed when psyllium was stopped. This interaction may also occur with black psyllium.

Likelihood Probable Evidence D
Metformin (Glucophage)

Theoretically, black psyllium might increase the therapeutic and adverse effects of metformin.
Animal research shows that concurrent consumption of blond psyllium with metformin slows and increases the absorption of metformin. This interaction may also occur with black psyllium. To avoid changes in absorption, take psyllium 30-60 minutes after metformin.

Likelihood Possible Evidence D
Olanzapine (Zyprexa)

Theoretically, taking black psyllium at the same time as olanzapine might reduce olanzapine absorption.
The fiber in black psyllium might decrease the absorption of olanzapine. A single case report describes a reduction in the effectiveness of olanzapine when it was concomitantly administered with an unspecified type of psyllium 3 grams orally twice daily. This effect was reversed when psyllium was stopped.

Likelihood Possible Evidence D
Digoxin (Lanoxin)

Theoretically, taking black psyllium at the same time as digoxin might reduce digoxin absorption and decrease digoxin levels.
Psyllium might bind digoxin in the gut. However, some clinical evidence suggests that psyllium does not impact digoxin absorption.

Likelihood Unlikely Evidence B
Ethinyl Estradiol

Theoretically, taking black psyllium at the same time as ethinyl estradiol might alter levels of estradiol.
Concurrent use of blond psyllium with ethinyl estradiol results in a slight increase in the extent of ethinyl estradiol absorption and a slower rate of absorption. This is unlikely to be clinically significant.

Likelihood Unlikely Evidence D
Oral Drugs

Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Psyllium seems to have variable effects on drug absorption. To avoid changes in absorption, take psyllium 30-60 minutes after oral medications. Animal research shows that blond psyllium delays and increases the absorption of metformin and ethinyl estradiol. Case reports and animal research suggest that blond psyllium might reduce absorption of lithium, digoxin, olanzapine, and carbamazepine. Finally, some pharmacokinetic studies show that psyllium does not affect the absorption of levothyroxine or warfarin. Although many of these studies evaluated blond psyllium, the fiber content in black psyllium may have similar effects.

Likelihood Possible Evidence B

Vitamin D8 drug types · 715 drugs

Aluminum

Vitamin D might increase aluminum absorption and toxicity, but this has only been reported in people with renal failure.
The protein that transports calcium across the intestinal wall can also bind and transport aluminum. This protein is stimulated by vitamin D, which may therefore increase aluminum absorption. This mechanism may contribute to increased aluminum levels and toxicity in people with renal failure, when they take vitamin D and aluminum-containing phosphate binders chronically.

Likelihood Probable Evidence B
Atorvastatin (Lipitor)

Vitamin D might reduce absorption of atorvastatin.
A small, low-quality clinical study shows that taking vitamin D reduces levels of atorvastatin and its active metabolites by up to 55%. However, while atorvastatin levels decreased, total cholesterol, low-density lipoprotein (LDL) cholesterol, and high-density lipoprotein (HDL) cholesterol levels did not substantially change. Atorvastatin is metabolized in the gut by CYP3A4 enzymes, and researchers theorized that vitamin D might induce CYP3A4, causing reduced levels of atorvastatin. However, this proposed mechanism was not specifically studied.

Likelihood Probable Evidence B
Calcipotriene (Dovonex)

Taking calcipotriene with vitamin D increases the risk for hypercalcemia.
Calcipotriene is a vitamin D analog used topically for psoriasis. It can be absorbed in sufficient amounts to cause systemic effects, including hypercalcemia. Theoretically, combining calcipotriene with vitamin D supplements might increase the risk of hypercalcemia.

Likelihood Probable Evidence D
Digoxin (Lanoxin)

Theoretically, hypercalcemia induced by high-dose vitamin D can increase the risk of arrhythmia from digoxin.
High doses of vitamin D can cause hypercalcemia. Hypercalcemia increases the risk of fatal cardiac arrhythmias with digoxin. Avoid vitamin D doses above the tolerable upper intake level (4000 IU daily for adults) and monitor serum calcium levels in people taking vitamin D and digoxin concurrently.

Likelihood Possible Evidence D
Diltiazem (Cardizem, Others)

Theoretically, hypercalcemia induced by high-dose vitamin D can reduce the therapeutic effects of diltiazem for arrhythmia.
High doses of vitamin D can cause hypercalcemia. Hypercalcemia can reduce the effectiveness of verapamil in atrial fibrillation. Theoretically this could also occur with diltiazem. Avoid vitamin D doses above the tolerable upper intake level (4000 IU daily for adults) and monitor serum calcium levels in people taking vitamin D and diltiazem concurrently.

Likelihood Probable Evidence B
Thiazide Diuretics

Theoretically, taking thiazide diuretics and high-dose vitamin D can increase the risk of hypercalcemia.
Thiazide diuretics decrease urinary calcium excretion, which could lead to hypercalcemia if vitamin D supplements are taken concurrently. This has been reported in people being treated with vitamin D for hypoparathyroidism, and also in elderly people with normal parathyroid function who were taking a thiazide, vitamin D, and calcium-containing antacids daily.

Likelihood Probable Evidence D
Verapamil (Calan, Others)

Hypercalcemia induced by high-dose vitamin D can reduce the therapeutic effects of verapamil for arrhythmia.
Hypercalcemia due to high doses of vitamin D can reduce the effectiveness of verapamil in atrial fibrillation. Avoid vitamin D doses above the tolerable upper intake level (4000 IU daily for adults) and monitor serum calcium levels in people taking vitamin D and verapamil concurrently.

Likelihood Probable Evidence B
Cytochrome P450 3A4 (Cyp3A4) Substrates

Vitamin D might induce CYP3A4 enzymes and reduce the bioavailability of CYP3A4 substrates.
There is some concern that vitamin D might induce CYP3A4. In vitro research suggests that vitamin D induces CYP3A4 transcription. Additionally, observational research has found that increased UV light exposure and serum vitamin D levels are associated with decreased serum levels of CYP3A4 substrates such as tacrolimus and sirolimus, while no association between UV light exposure or vitamin D levels and levels of mycophenolic acid, a non-CYP3A4 substrate, was found. A small, low-quality clinical study shows that taking vitamin D reduces levels of the CYP3A4 substrate atorvastatin and its active metabolites by up to 55%; however, the clinical effects of atorvastatin were not reduced. While researchers theorized that vitamin D might induce CYP3A4, this proposed mechanism was not specifically studied.

Likelihood Possible Evidence D

Reishi Mushroom3 drug types · 375 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, high doses of reishi mushroom might increase the risk of bleeding.
A dose of 1.5 grams daily of reishi mushroom does not seem to decrease platelet aggregation, but a higher dose of 3 grams daily does.

Likelihood Possible Evidence D
Antidiabetes Drugs

Theoretically, reishi mushroom might have additive effects with antidiabetes drugs.
Animal research suggests that reishi mushroom decreases blood sugar. However, in patients with type 2 diabetes, taking reishi mushroom does not reduce fasting glucose levels, and its effects on glycated hemoglobin are inconsistent.

Likelihood Possible Evidence D
Antihypertensive Drugs

Theoretically, concurrent use of reishi mushroom with antihypertensive drugs might increase the risk of hypotension.
Reishi mushroom has shown hypotensive activity in animal research. Clinical evidence suggests that reishi mushroom reduces blood pressure in some, but not all, patients with hypertension.

Likelihood Possible Evidence D

Chaga Mushroom3 drug types · 327 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, chaga may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
In vitro and animal research suggests that chaga extract can inhibit platelet aggregation. This effect has not been reported in humans.

Likelihood Possible Evidence D
Antidiabetes Drugs

Theoretically, taking chaga with antidiabetes drugs might increase the risk of hypoglycemia.
Animal research suggests that chaga might decrease blood glucose levels and increase insulin levels. This has not been reported in humans.

Likelihood Possible Evidence D
Immunosuppressants

Theoretically, chaga might interfere with immunosuppressive therapy.
In vitro research suggests that certain constituents of chaga stimulate immune function. This has not been reported in humans.

Likelihood Possible Evidence D

Shiitake Mushroom2 drug types · 312 drugs

Cytochrome P450 2D6 (Cyp2D6) Substrates

Theoretically, shiitake mushroom might decrease levels of drugs metabolized by CYP2D6.
In vitro studies suggest that the shiitake mushroom extract AHCC might induce the CYP2D6 enzyme. This effect has not been reported in humans.

Likelihood Possible Evidence D
Immunosuppressants

Theoretically, taking shiitake mushroom might decrease the effects of immunosuppressive therapy.
In vitro evidence suggests that shiitake mushroom extracts stimulate immune function.

Likelihood Possible Evidence D

Cordyceps Mushroom3 drug types · 249 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, cordyceps may increase the risk of bleeding when used with antiplatelet or anticoagulant drugs.
In vitro and animal research suggests that cordyceps extract inhibits platelet aggregation and function. However, this interaction has not been reported in humans.

Likelihood Possible Evidence D
Immunosuppressants

Theoretically, concurrent use of cordyceps might interfere with immunosuppressive therapy.
Animal and in vitro research suggests that cordyceps stimulates the immune system. However, limited clinical research suggests that taking cordyceps may lower the necessary therapeutic dose of the immunosuppressant cyclosporine, which suggests that cordyceps may have an immunosuppressive effect.

Likelihood Possible Evidence B
Testosterone

Theoretically, concurrent use of cordyceps and testosterone might have additive effects.
Animal research suggests that cordyceps can increase testosterone levels. The clinical significance of this finding is unclear.

Likelihood Possible Evidence D

Turkey Tail Mushroom4 drug types · 187 drugs

Antidiabetes Drugs

Theoretically, taking turkey tail mushroom with antidiabetes drugs might increase the risk of hypoglycemia.
Animal research suggests that turkey tail mushroom and a polysaccharide component can have hypoglycemic effects.

Likelihood Possible Evidence D
Cyclophosphamide

Theoretically, the polysaccharide peptide (PSP) component of turkey tail mushroom might increase exposure to cyclophosphamide.
Some animal research shows that the PSP component of turkey tail mushroom can increase the area under the concentration-time curve (AUC) of cyclophosphamide by 44% to 50% and the half-life by 34% to 43%. This interaction could potentially increase the effects and adverse effects of cyclophosphamide. However, it is not known whether PSP affects the levels of the active metabolites of cyclophosphamide that are responsible for its clinical activity.

Likelihood Possible Evidence D
Tamoxifen (Nolvadex)

Theoretically, the polysaccharide peptide (PSP) component of turkey tail mushroom might interfere with the absorption of tamoxifen.
Animal research suggests that PSP increases the time to reach maximum concentration of a single dose of tamoxifen by about 9.5 hours, or 228%. When repeated doses of tamoxifen were given, the time to reach maximum concentration was increased by about 5.6 hours, or 93%. However, PSP did not affect the maximum concentration or the area under the curve of tamoxifen.

Likelihood Possible Evidence D
Cytochrome P450 2C9 (Cyp2C9) Substrates

Theoretically, the polysaccharide peptide (PSP) component of turkey tail mushroom might inhibit CYP2C9.
Laboratory research suggests that the PSP component of turkey tail mushroom dose-dependently inhibits CYP2C9. Theoretically, taking PSP with drugs metabolized by CYP2C9 might increase drug levels and the risk of adverse effects. However, this has not been reported in humans.

Likelihood Possible Evidence D

Agaricus Mushroom1 drug type · 86 drugs

Antidiabetes Drugs

Theoretically, taking agaricus mushroom with antidiabetes drugs might increase the risk of hypoglycemia.
In one clinical study in patients with type 2 diabetes who are stabilized on conventional oral hypoglycemic agents, 3 of 29 patients taking an agaricus mushroom extract 500 mg three times daily for 12 weeks reported hypoglycemia, compared to one of 29 patients in the placebo group.

Likelihood Possible Evidence D
The maker

Brand information

Manufacturer and brand details for MY-Immune Defense, from the product label.

Nature's Sunshine

See all Nature's Sunshine products
Name
Nature's Sunshine Products, Inc.
City
Spanish Fork
State
Utah
ZipCode
84660
Phone Number
(800) 223-8225
Web Address
naturessunshine.com
Pharmacist Counseling Corner

MY-Immune Defense by Nature's Sunshine: Common Questions

Does MY-Immune Defense by Nature's Sunshine interact with any medications?
Yes. Based on its ingredients, MY-Immune Defense has a known interaction with 2,207 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
MY-Immune Defense contains 8 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Can I take this while I'm pregnant?
Vitamin D is often used during pregnancy at recommended doses under a doctor's supervision, but none of the mushroom ingredients have enough safety data — the safety information advises against using them in pregnancy. Talk with your doctor or pharmacist about whether this product is right for you.
Does this really boost my immune system?
The mushroom ingredients have a long history in traditional use, but we don't have reliable evidence that this specific product strengthens immune function. Turkey tail mushroom shows possibly effective evidence for cancer support, but the others don't have established ratings for immune health in our data.
What are the mushrooms in here actually supposed to do?
The blend includes cordyceps (traditionally for energy and athletic performance, though evidence is limited), turkey tail (for cancer support, where some evidence exists), reishi (traditionally calming, though studies haven't confirmed it helps cholesterol or blood pressure), chaga, shiitake, and agaricus (all with insufficient evidence for specific conditions). They're food ingredients with a wellness history rather than proven therapeutic agents.
Could this cause low blood sugar if I'm diabetic?
Yes — theoretically. Turkey tail, chaga, agaricus, and reishi mushrooms may lower blood sugar, so combining them with diabetes medication could increase your risk of hypoglycemia. Check with your pharmacist before starting.
What side effects should I watch for?
Most people tolerate the mushrooms well, but watch for abdominal discomfort, diarrhea, nausea, dizziness, or dry mouth. Very high vitamin D doses can cause toxicity with symptoms like excessive thirst and weakness. If you consume huge amounts of chaga, there's a rare risk of kidney problems. Stop and call your doctor if anything feels off.
Is this safe to take long-term?
Vitamin D is safe at recommended doses long-term, but the mushroom ingredients haven't been well studied for long-term safety — most research is short-term. Check with your healthcare provider if you plan to use it regularly.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

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Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

MY-Immune Defense label
Go deeper

The Full Monographs Behind MY-Immune Defense’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Vitamin D

Interacts with 715 drugs

Vitamin D is a fat-soluble vitamin that helps your body absorb calcium and is important for healthy bones, muscles, and immune function. Many people, especially those with low sun exposure,...

Read the full Vitamin D monograph →
Herb & supplement monograph

Black Psyllium

Interacts with 2,025 drugs

Black psyllium is a soluble-fiber supplement made from the seeds of a Plantago plant, used mostly to ease constipation and support digestive health. It is best known and most studied for rel...

Read the full Black Psyllium monograph →
Herb & supplement monograph

Cordyceps

Interacts with 249 drugs

Cordyceps is a fungus used in traditional Chinese medicine for energy, exercise performance, and lung and immune support. Human research is limited and mostly low quality, so its benefits ar...

Read the full Cordyceps monograph →
Herb & supplement monograph

Turkey Tail Mushroom

Interacts with 187 drugs

Turkey tail is a woodland mushroom rich in polysaccharides like beta-glucans, and it is mainly used to support the immune system. Some of its purified extracts (PSK and PSP) have been studie...

Read the full Turkey Tail Mushroom monograph →
Herb & supplement monograph

Reishi Mushroom

Interacts with 375 drugs

Reishi is a traditional Asian mushroom widely used to support the immune system and overall wellness. Human evidence for most of its claimed benefits is limited or low-quality, so it should...

Read the full Reishi Mushroom monograph →
Herb & supplement monograph

Chaga

Interacts with 327 drugs

Chaga is a fungus that grows mostly on birch trees and is used as a tea or supplement, mainly for immune and antioxidant support. Human evidence for its benefits is very limited, and it may...

Read the full Chaga monograph →
Herb & supplement monograph

Shiitake Mushroom

Interacts with 312 drugs

Shiitake is a popular edible mushroom that is nutritious and safe to eat as food for most people. Some of its extracts (like lentinan and AHCC) have been studied as immune support, mainly al...

Read the full Shiitake Mushroom monograph →
Herb & supplement monograph

Agaricus Mushroom

Interacts with 86 drugs

Agaricus mushroom (often Agaricus blazei/subrufescens) is a culinary and medicinal mushroom studied mostly for possible immune and antioxidant effects. The human evidence is limited and not...

Read the full Agaricus Mushroom monograph →
Sources

Sources & How We Checked

MY-Immune Defense's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

The 171 references behind this product’s interaction data

Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.

Vitamin D 26 references
  1. McEvoy GK, ed. AHFS Drug Information. Bethesda, MD: American Society of Health-System Pharmacists, 1998.
  2. Tatro DS, ed. Drug Interactions Facts. Facts and Comparisons Inc., St. Louis, MO. 1999.
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Black Psyllium 18 references
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Cordyceps 14 references
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Turkey Tail Mushroom 15 references
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Reishi Mushroom 17 references
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Chaga 9 references
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Shiitake Mushroom 67 references
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Agaricus Mushroom 5 references
  1. Hsu CH, Liao YL, Lin SC, et al. The mushroom Agaricus Blazei Murill in combination with metformin and gliclazide improves insulin resistance in type 2 diabetes: a randomized, double-blinded, and placebo-controlled clinical trial. J Altern Complement Med 2
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  3. Ohno S, Sumiyoshi Y, Hashine K, et al. Phase I clinical study of the dietary supplement, Agaricus blazei Murill, in cancer patients in remission. Evid Based Complement Alternat Med 2011, doi 10.1155/2011/192381.
  4. Suehiro M, Katoh N, Kishimoto S. Chelitis due to Agaricus blazei Murill mushroom extract. Contact Dermatitis 2007;56(5):293-4.
  5. Iwai N, Okuda T, Sawada R, et al. Interstitial lung disease associated with Agaricus blazei Murill in a patient with pancreatic ductal adenocarcinoma receiving gemcitabine-based therapy. Case Rep Gastroenterol 2022;16(1):229-234.

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DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

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