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Dietary supplement

Choline & Inositol Ingredients & Drug Interactions

by Nature's Way

Choline & Inositol label
See full label image
Capsule Category: Other Combinations
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Choline & Inositol against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.

Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy

The interaction bottom line Most serious interaction: Moderate

Choline & Inositol is a dietary supplement by Nature's Way with 2 active ingredients. Its ingredients are commonly taken for polycystic ovary syndrome (pcos), anxiety and panic, depression and mood.Based on those ingredients, 102 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Inositol, Choline. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Choline & Inositol by Nature's Way

Ask about any prescription or over-the-counter medication and we check it for interactions with Choline & Inositol by Nature's Way — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Choline & Inositol by Nature's Way

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

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 12, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 2 of its 2 active ingredients.
  • No proprietary blends here — you can verify the dose of every single component.

This product contains 2 active ingredients: inositol and choline. Inositol is a naturally occurring compound that plays a role in cell signaling and may help regulate blood sugar and support reproductive health.

Choline is an essential nutrient involved in brain function, cell structure, and fat metabolism. Both are found in foods but are also available as supplements when dietary intake is low.

The product also contains inactive ingredients—gelatin, magnesium stearate, and cellulose—which are the capsule shell and binders that hold the formula together.

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: brain health and cellular energy.
  • We looked for evidence on: Age-related cognitive decline, Alzheimer disease, Cognitive function, Dementia, Infant development, Neural tube birth defects — and 4 related terms.
  • The strongest evidence on file: Inositol is rated "Possibly Effective" for Preterm labor (Natural Medicines).
  • Also on file: Inositol is rated "Insufficient Reliable Evidence To Rate" for Nonalcoholic fatty liver disease (NAFLD), Hypertension, Pregnancy-induced hypertension.
  • Also on file: Choline is rated "Insufficient Reliable Evidence To Rate" for Age-related cognitive decline, Alzheimer disease, Nonalcoholic fatty liver disease (NAFLD).

Inositol has possibly effective evidence for polycystic ovary syndrome (PCOS), metabolic syndrome, and preterm labor. It's rated possibly ineffective for anxiety, diabetic nerve pain (diabetic neuropathy), and depression—meaning the research doesn't support its use for these conditions.

For choline, the evidence we have is less clear. We hold insufficient evidence to rate it for athletic performance, bronchitis, age-related cognitive decline, liver disease related to IV nutrition (TPN-associated hepatic steatosis), hay fever, and Alzheimer disease.

That means the data isn't established yet, not that it doesn't work—just that we can't make a solid claim either way.

The evidence, ingredient by ingredient Inositol Choline

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 2 of the 2 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 2 of 2.
  • General safety write-ups exist for 2 of 2.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Both inositol and choline are generally well tolerated at typical doses. With inositol, the most common side effects are diarrhea, gas, and nausea.

Choline can cause a fishy body odor at all doses due to how your body metabolizes it; at high doses above 9 grams daily, it may cause diarrhea, nausea, salivation, sweating, and vomiting. The tolerable upper daily limit for choline is 3.5 grams.

For pregnancy, inositol is rated possibly safe but should only be used under medical supervision since full safety data aren't established. Choline is rated likely safe in pregnancy and is actually important during this time—but only use doses your doctor recommends.

If you're breastfeeding, choline needs are higher, so talk with your doctor before taking a supplement.

Side effects, ingredient by ingredient Inositol Choline

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?
  • 2 of the 2 matched ingredients can interact with medications — Inositol, Choline.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: diabetes medications.
  • For scale: 102 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.

If you take antidiabetes drugs (medications that lower blood sugar), double-check with your pharmacist before starting—inositol may increase the risk of low blood sugar. If you take atropine, mention this supplement as well, since choline might reduce its effects.

Altogether, these interactions span 102 individual medications.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with some supporting evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

This product may help with PCOS, metabolic syndrome, or preterm labor if your doctor thinks it's right for you. If you take blood sugar medications or atropine, check with your pharmacist first.

Pregnant or breastfeeding? Talk with your doctor about the right dose for you.

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

Assessment coverage: 2 of 2 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Feb 26, 2020.

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 Choline & Inositol, straight from the product label.

Brand Nature's Way
Barcode (UPC) 033674404621
Net contents 100 Capsule(s)
Market status On market
Date entered into DSLD Feb 26, 2020
DSLD ID 213425
Product type Other Combinations
Supplement form Capsule
Dietary claims / uses Nutrient, All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Gluten Free, Dairy Free
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 Choline & Inositol by Nature's Way, 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:
2 Capsule(s)
Maximum serving Sizes:
2 Capsule(s)
Servings per container
50
UPC/BARCODE
033674404621
IngredientAmount% DV
Calories10 Calorie(s)--
Total Carbohydrates1 Gram(s)1%
Inositol500 mg--
Choline500 mg91%

Other ingredients: Gelatin, Magnesium Stearate, Cellulose

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.
Formulation

Brain health & cellular energy

Choline is the precursor of the neurotransmitter acetylcholine and is involved in healthy brain function. Inositol is the precursor of phospholipids, a major component of cellular membranes, which helps to maintain nutrient transfer across the cell membranes.

Gluten free. No salt, yeast-derived ingredients, wheat, dairy products, or artificial colors, flavors, or preservatives.

FDA Disclaimer Statement

These statements have not been evaluated by the Food & Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

General Statements

Nature’s Way Since 1969

Bottles made from 97% post-consumer recycled plastic

Formula

Choline & Inositol 1,000 mg per serving

FDA Statement of Identity

Dietary Supplement

Suggested/Recommended/Usage/Directions

Recommendation: Take 2 capsules daily, preferably with food.

Precautions

If you are pregnant, nursing, or taking any medications, consult a healthcare professional before use.

Keep out of reach of children.

Safety sealed with printed inner seal. Do not use if seal is broken or missing.

Brand IP Statement(s)

2019 Nature’s Way Brands, LLC

Seals/Symbols

Quality Global Sourcing Bottled & Tested In the USA

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

Choline & Inositol by Nature's Way label

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

Choline & Inositol label

Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.

View the full label (PDF)
What’s inside

The Ingredients in Choline & Inositol by Nature's Way

These are the 2 active ingredients this product is made of. Select any to open its full monograph.

Serving size2 Capsule(s) Dosage formCapsule Servings per container50 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.

Inositol

Interacts with
86 drugs
500 mg per serving

Inositol is a sugar alcohol made naturally in the body and found in many foods, and it is sold as a supplement (often myo-inositol) mainly for PCOS, m...

Inositol monograph & interactions

Choline

Interacts with
16 drugs
500 mg per serving Form: Choline Bitartrate

Choline is an essential nutrient your body needs for liver function, brain health, and nerve signaling, and many people get enough from foods like egg...

Choline monograph & interactions

Other (inactive) ingredients: Gelatin, Magnesium Stearate, Cellulose. These complete the product’s ingredient list but are not active constituents.

Interaction report

Choline & Inositol by Nature's Way Drug Interactions

Want to check YOUR meds against Choline & Inositol?

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
102Drugs
86 Moderate 16 Minor

Ingredients driving the most interactions

Inositol 86
Choline 16

Individual Drug Interactions

The ingredients in Choline & Inositol interact with 102 drugs. Click any drug to see the details.

2 of the 2 ingredients in Choline & Inositol interact with drugs. Each result below shows which ingredient is responsible. Inositol Choline

Each ingredient & the kinds of drugs it affects

For each ingredient in Choline & Inositol 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.

Inositol1 drug type · 86 drugs

Antidiabetes Drugs

Theoretically, taking inositol with antidiabetes drugs might increase the risk of hypoglycemia.
Clinical research shows that inositol lowers blood glucose levels and glycated hemoglobin (HbA1c) levels in patients with diabetes.

Likelihood Possible Evidence A
Inositol full monograph & interactions

Choline1 drug type · 16 drugs

Atropine

Theoretically, choline might decrease the effects of atropine in the brain.
Animal research shows that administering choline one hour before administering atropine can attenuate atropine-induced decreases in brain levels of acetylcholine. Theoretically, concomitant use of choline and atropine may decrease the effects of atropine.

Likelihood Possible Evidence D
Choline full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Choline & Inositol, from the product label.

Nature's Way

See all Nature's Way products
Name
Nature's Way Brands, LLC
City
Green Bay
State
WI
ZipCode
54311
Phone Number
1-800-962-8873
Web Address
www.naturesway.com
Pharmacist Counseling Corner

Choline & Inositol by Nature's Way: Common Questions

Does Choline & Inositol by Nature's Way interact with any medications?
Yes. Based on its ingredients, Choline & Inositol has a known interaction with 102 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Choline & Inositol contains 2 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.
Will this supplement make my blood sugar drop too low if I'm on diabetes medication?
It could theoretically increase that risk. Inositol in this product lowers blood glucose on its own, so combined with your medication the effect might be stronger. Talk to your doctor or pharmacist about monitoring and whether this product is right for you.
What side effects should I expect?
Inositol most commonly causes diarrhea, gas, and nausea. Choline can cause a fishy body odor and at high doses may cause diarrhea, nausea, and sweating. These are usually mild at normal supplement doses.
Is this safe to take while I'm pregnant?
Inositol is rated possibly safe in pregnancy but should only be used under your doctor's supervision since full safety data aren't available. Choline is rated likely safe and is actually important during pregnancy—but only take the dose your doctor recommends.
Can I breastfeed while taking this?
Choline needs are higher while breastfeeding, so this product might be appropriate—but use it only under professional guidance. There's not enough reliable information on inositol in breastfeeding, so check with your doctor or pharmacist first.
Does this really help with PCOS?
Inositol has possibly effective evidence for PCOS, meaning research suggests it may help, but it's not a sure thing. Talk with your doctor about whether it makes sense for your situation.

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

Not sure if Choline & Inositol is safe with your meds?

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Ask a pharmacist

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.

Choline & Inositol label
Go deeper

The Full Monographs Behind Choline & Inositol’s Ingredients

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

Herb & supplement monograph

Inositol

Interacts with 86 drugs

Inositol is a sugar alcohol made naturally in the body and found in many foods, and it is sold as a supplement (often myo-inositol) mainly for PCOS, mood, and metabolic concerns. The stronge...

Read the full Inositol monograph → Herb & supplement monograph

Choline

Interacts with 16 drugs

Choline is an essential nutrient your body needs for liver function, brain health, and nerve signaling, and many people get enough from foods like eggs, meat, and fish. Supplements may help...

Read the full Choline monograph →
Sources

Sources & How We Checked

Choline & Inositol'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 28 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.

Inositol 14 references
  1. Palatnik A, Frolov K, Fux M, Benjamin J. Double-blind, controlled, crossover trial of inositol versus fluvoxamine for the treatment of panic disorder. J Clin Psychopharmacol 2001;21:335-9.. PubMed
  2. Allan SJ, Kavanagh GM, Herd RM, Savin JA. The effect of inositol supplements on the psoriasis of patients taking lithium: a randomized, placebo-controlled trial. Br J Dermatol 2004;150:966-9. PubMed
  3. Machado-Vieira R, Viale CI, Kapczinski F. Mania associated with an energy drink: the possible role of caffeine, taurine, and inositol. Can J Psychiatry 2001;46:454-5. PubMed
  4. Kamenov Z, Kolarov G, Gateva A, Carlomagno G, Genazzani AD. Ovulation induction with myo-inositol alone and in combination with clomiphene citrate in polycystic ovarian syndrome patients with insulin resistance. Gynecol Endocrinol 2015;31(2):131-5. PubMed
  5. Matarrelli B, Vitacolonna E, D'Angelo M, et al. Effect of dietary myo-inositol supplementation in pregnancy on the incidence of maternal gestational diabetes mellitus and fetal outcomes: a randomized controlled trial. J Matern Fetal Neonatal Med 2013;26(1 PubMed
  6. Mukai T, Kishi T, Matsuda Y, Iwata N. A meta-analysis of inositol for depression and anxiety disorders. Hum Psychopharmacol 2014;29(1):55-63. PubMed
  7. Farren M, Daly N, McKeating A, Kinsley B, Turner MJ, Daly S. The Prevention of Gestational Diabetes Mellitus With Antenatal Oral Inositol Supplementation: A Randomized Controlled Trial. Diabetes Care. 2017;40(6):759-63. PubMed
  8. Zheng X, Liu Z, Zhang Y, et al. Relationship Between Myo-Inositol Supplementary and Gestational Diabetes Mellitus: A Meta-Analysis. Medicine (Baltimore). 2015;94(42):e1604. PubMed
  9. Crawford TJ, Crowther CA, Alsweiler J, Brown J. Antenatal dietary supplementation with myo-inositol in women during pregnancy for preventing gestational diabetes. Cochrane Database Syst Rev. 2015;(12):CD011507. PubMed
  10. Maurizi AR, Menduni M, Del Toro R, et al. A pilot study of D-chiro-inositol plus folic acid in overweight patients with type 1 diabetes. Acta Diabetol. 2017;54(4):361-65. PubMed
  11. Leppink EW, Redden SA, Grant JE. A double-blind, placebo-controlled study of inositol in trichotillomania. Int Clin Psychopharmacol. 2017;32(2):107-14. PubMed
  12. Lam S, Mandrekar SJ, Gesthalter Y. A Randomized Phase IIb Trial of myo-Inositol in Smokers with Bronchial Dysplasia. Cancer Prev Res (Phila). 2016;9(12):906-14.
  13. Wozniak J, Faraone SV, Chan J, et al. A randomized clinical trial of high eicosapentaenoic acid omega-3 fatty acids and inositol as monotherapy and in combination in the treatment of pediatric bipolar spectrum disorders: a pilot study. J Clin Psychiatry. PubMed
  14. Vitale SG, Corrado F, Caruso S, et al. Myo-inositol supplementation to prevent gestational diabetes in overweight non-obese women: bioelectrical impedance analysis, metabolic aspects, obstetric and neonatal outcomes - a randomized and open-label, placebo-

See these in context on the Inositol monograph →

Choline 14 references
  1. Yates AA, Schlicker SA, Suitor CW. Dietary reference intakes: The new basis for recommendations for calcium and related nutrients, B vitamins, and choline. J Am Diet Assoc 1998;98:699-706. PubMed
  2. Cho E, Willett WC, Colditz GA, et al. Dietary choline and betaine and the risk of distal colorectal adenoma in women. J Natl Cancer Inst 2007;99:1224-31. PubMed
  3. Schmidt, C., Abicht, A., Krampfl, K., Voss, W., Stucka, R., Mildner, G., Petrova, S., Schara, U., Mortier, W., Bufler, J., Huebner, A., and Lochmuller, H. Congenital myasthenic syndrome due to a novel missense mutation in the gene encoding choline acetyl
  4. Tamminga, C., Smith, R. C., Chang, S., Haraszti, J. S., and Davis, J. M. Depression associated with oral choline. Lancet 10-23-1976;2(7991):905. PubMed
  5. Wood, J. L. and Allison, R. G. Effects of consumption of choline and lecithin on neurological and cardiovascular systems. Fed.Proc. 1982;41(14):3015-3021.
  6. Growdon, J. H. and Gelenberg, A. J. Choline and lecithin administration to patients with tardive dyskinesia. Trans.Am.Neurol.Assoc. 1978;103:95-99.
  7. Smith, C. M., Swash, M., Exton-Smith, A. N., Phillips, M. J., Overstall, P. W., Piper, M. E., and Bailey, M. R. Choline therapy in Alzheimer's disease. Lancet 8-5-1978;2(8084):318. PubMed
  8. Morrison, L. M. and W. F. Gonzales. Choline in coronary atherosclerosis. Amer.Heart J. 1950;39:729.
  9. Christie, J. G. Blackburn 1. M. Glen A. I. M. Zeisel S. Shering A. & Yates C. M. Effects of choline and lecithin on CSF choline levels and on cognitive functioning in patients with presenile dementia of the Alzheimer type. Nutrition and the brain 1979;5
  10. Sidhu N, Davies S, Nadarajah A, et al. Oral choline supplementation for postoperative pain. Br J Anaesth 2013;111(2):249-55. PubMed
  11. Wozniak JR, Fuglestad AJ, Eckerle JK, et al. Choline supplementation in children with fetal alcohol spectrum disorders has high feasibility and tolerability. Nutr Res. 2013;33(11):897-904. PubMed
  12. Wozniak JR, Fuglestad AJ, Eckerle JK, et al. Choline supplementation in children with fetal alcohol disorders: a randomized, double-blind, placebo-controlled trial. Am J Clin Nutr. 2015;102(5): 1113-25.
  13. Ross RG, Hunter SK, McCarthy L, et al. Perinatal choline effects on neonatal pathophysiology related to later schizophrenia risk. Am J Psychiatry. 2013;170(3):290-8. PubMed
  14. Food and Nutrition Board, Institute of Medicine. Choline. Dietary Reference Intakes: Thiamin, Riboflavin, Niacin, Vitamin B-6, Vitamin B-12, Pantothenic Acid, Biotin, and Choline. Washington D.C.: National Academy Press; 1998:390-422.

See these in context on the Choline monograph →

Parts of this content are provided by the Therapeutic Research Center, LLC.

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.

© 2021 Therapeutic Research Center, LLC

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