Interactions on record — worth a quick check against your medications. Based on 3 of 6 ingredients. Check your meds →
Dietary supplement

Post BCAA Grape Ingredients & Drug Interactions

by ANS

Powder Category: Other Combinations
Most serious interaction: Moderate
The interaction bottom line Most serious interaction: Moderate

Post BCAA Grape is a dietary supplement by ANS with 6 active ingredients. Its ingredients are commonly taken for preventing or treating low potassium (hypokalemia), supporting healthy blood pressure, muscle cramps.Based on those ingredients, 112 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Potassium, L-Glutamine, Micronized. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

HelloPharmacist Scorecard of Post BCAA Grape by ANS

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 6 active ingredients.
  • “BCAA Complex” is a proprietary blend — the label gives one combined amount (4,000 mg) without saying how much of each component you get.

Post BCAA Grape contains 6 active ingredients. The main components are branched-chain amino acids (BCAAs): L-isoleucine, L-valine, and L-leucine, which are amino acids your muscles use during and after exercise.

The product also includes potassium (an electrolyte), L-glutamine (another amino acid), and CarnoSyn (beta-alanine, a compound that helps buffer acid in muscles). The powder comes with inactive ingredients like maltodextrin, citric acid, flavoring, and colorants.

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: athletic performance and muscle recovery.
  • We looked for evidence on: Athletic performance, Physical performance, Exercise-induced muscle damage, Exercise-induced muscle breakdown, Sarcopenia, muscle endurance — and 2 related terms.
  • The strongest evidence on file: Beta-alanine is rated "Possibly Effective" for Athletic performance (Natural Medicines).
  • Also on file: Beta-alanine is rated "Possibly Effective" for Physical performance.
  • Also on file: Glutamine is rated "Possibly Ineffective" for Athletic performance.

Beta-alanine (CarnoSyn) is possibly effective for athletic and physical performance — the evidence suggests it may help, though it's not definitive. L-glutamine is effective for sickle cell disease and possibly effective for HIV/AIDS-related wasting, postoperative recovery, and critical illness from trauma.

For the individual BCAAs and potassium in this blend, the evidence we hold doesn't establish effectiveness ratings for athletic use or muscle recovery.

The evidence, ingredient by ingredient Potassium Beta-alanine Glutamine

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 3 of the 3 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 3 of 3.
  • General safety write-ups exist for 3 of 3.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Potassium is generally well tolerated from food, but supplements can raise blood potassium to dangerous levels in some people, especially those with kidney disease — use only under medical guidance. Beta-alanine is generally well tolerated in healthy adults but commonly causes harmless skin tingling and flushing, especially on the scalp, starting within 20 minutes and lasting about an hour; it has not been studied for long-term high doses and is best avoided during pregnancy and breastfeeding.

L-glutamine is generally well tolerated but may cause belching, bloating, diarrhea, nausea, or abdominal pain; people with kidney or liver disease should use it only under medical supervision, and it should be avoided in pregnancy and breastfeeding unless a doctor recommends it. Potassium is rated likely safe in pregnancy and lactation.

Side effects, ingredient by ingredient Potassium Beta-alanine Glutamine

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 3 matched ingredients can interact with medications — Potassium, Glutamine.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: seizure medications.
  • For scale: 112 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, check with your own doctor or pharmacist if you take any of these: blood pressure drugs called ACE inhibitors, angiotensin receptor blockers (ARBs), or potassium-sparing diuretics — potassium in this product raises the risk of dangerously high blood potassium levels. Also clear it if you take seizure medications (anticonvulsants) — glutamine may theoretically interfere with them.

No interactions are documented for the individual branched-chain amino acids we could check.

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 designed for athletes and active people looking to support muscle performance and recovery. If you take blood pressure medications (especially ACE inhibitors, ARBs, or potassium-sparing diuretics), have kidney disease, or take seizure medications, you need to clear this with your own doctor or pharmacist before starting.

Expect possible tingling and flushing from the beta-alanine — it's harmless but noticeable. Talk it over with your healthcare provider to make sure it's right for you.

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

Assessment coverage: 3 of 6 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Feb 26, 2014.

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 Post BCAA Grape, straight from the product label.

Brand ANS
Barcode (UPC) 859582001956
Net contents 240 Gram(s); 8.5 oz.
Market status On market
Date entered into DSLD Feb 26, 2014
DSLD ID 30741
Product type Other Combinations
Supplement form Powder
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years)
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 Post BCAA Grape by ANS, 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:
8 Gram(s)
Maximum serving Sizes:
16 Gram(s)
Servings per container
30
UPC/BARCODE
859582001956
IngredientAmount% DV
Potassium60 mg2%
CarnoSyn500 mg--
BCAA Complex4000 mg--
L-Isoleucine, Micronized0 NP--
L-Valine, Micronized0 NP--
L-Glutamine, Micronized0 NP--
L-Leucine, Micronized0 NP--

Other ingredients: Maltodextrin, Natural & Artificial flavors, Citric Acid, Potassium Citrate, Silicon Dioxide, Sucralose, FD&C Red 40, FD&C Blue 1

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.
Seals/Symbols

ANS

Carno-Syn(R) Carnosine Synthesizer

t {Twitter}

f {Facebook}

Precautions

Warning: This product is only intended to be consumed by healthy adults 18 years of age of older.

Pregnant or nursing women should not use this product.

Discontinue use and immediately consult your health care professional if you experience any adverse reaction to this product. Do not exceed recommended serving. Do not use if you are prone to dehydration or exposed to excessive heat. Do not use if you suffer from the rare genetic disorder, Hyper Beta-Alaninemia.

Discontinue use if sleeplessness, tremors, dizziness, nervousness, headaches or heart palpitations occur.

KEEP OUT OF REACH OF CHILDREN.

ALLERGEN WARNING: Manufactured on equipment which processes products containing milk, eggs, soybeans, wheat, shellfish, fish oil, tree nuts, and peanut flavor.

Formula

This product contains Beta-alanine which may cause a tingling skin sensation in some individuals.

General Statements

Contents may settle after shipping.

Moisture and humidity can cause clumping and discoloration.

lot #, Exp. date

MUSCLE RECOVERY INCREASE STAMINA DELAY FATIGUE

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Suggested/Recommended/Usage/Directions

Shake container prior to each use to redistribute ingredients.

SUGGESTED USE: As a dietary supplement, mix 1-2 scoops in 6-12 ounces of water and shake vigorously. May be taken before, during, and after exercise. For enhanced results, POST BCAA may be taken with METHYL PUMP and TEST D-ASPARTIC.

FDA Disclaimer Statement

This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

Brand IP Statement(s)

Natural Alternatives International (NAI) is the owner of patents 5,965,596, 6,172,098, 6,426,361, 6,680,294 and registered trademark CarnoSyn(R).

FDA Statement of Identity

DIETARY SUPPLEMENT

See for yourself

Post BCAA Grape by ANS label

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

What’s inside

The Ingredients in Post BCAA Grape by ANS

These are the 6 active ingredients this product is made of. Select any to open its full monograph.

Serving size8 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.

Potassium

Interacts with
62 drugs
60 mg per serving

Potassium is an essential mineral your body needs for nerve signals, muscle function, and a steady heartbeat, and most people get enough from a balanc...

Potassium monograph & interactions

CarnoSyn

No known
interactions
500 mg per serving Form: Beta-Alanine

Beta-alanine is an amino acid taken mostly by athletes to raise muscle carnosine, which may help buffer acid and reduce fatigue during short, high-int...

CarnoSyn monograph & interactions

BCAA Complex

4000 mg per serving

Other (inactive) ingredients: Maltodextrin, Natural & Artificial flavors, Citric Acid, Potassium Citrate, Silicon Dioxide, Sucralose, FD&C Red 40, FD&C Blue 1. These complete the product’s ingredient list but are not active constituents.

Interaction report

Post BCAA Grape by ANS Drug Interactions

Want to check YOUR meds against Post BCAA Grape?

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
112Drugs
112 Moderate

Ingredients driving the most interactions

Each ingredient & the kinds of drugs it affects

For each ingredient in Post BCAA Grape 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.

Potassium3 drug types · 62 drugs

Ace Inhibitors (Aceis)

Using ACEIs with high doses of potassium increases the risk of hyperkalemia.
ACEIs block the actions of the renin-angiotensin-aldosterone system and reduce potassium excretion. Concomitant use of these drugs with potassium supplements increases the risk of hyperkalemia. However, concomitant use of these drugs with moderate dietary potassium intake (about 3775-5200 mg daily) does not increase serum potassium levels.

Likelihood Likely Evidence C
Angiotensin Receptor Blockers (Arbs)

Using ARBs with high doses of potassium increases the risk of hyperkalemia.
ARBs block the actions of the renin-angiotensin-aldosterone system and reduce potassium excretion. Concomitant use of these drugs with potassium supplements increases the risk of hyperkalemia. However, concomitant use of these drugs with moderate dietary potassium intake (about 3775-5200 mg daily) does not increase serum potassium levels.

Likelihood Likely Evidence C
Potassium-Sparing Diuretics

Concomitant use increases the risk of hyperkalemia.
Using potassium-sparing diuretics with potassium supplements increases the risk of hyperkalemia.

Likelihood Likely Evidence C

L-Glutamine, Micronized1 drug type · 50 drugs

Anticonvulsants

Theoretically, glutamine might antagonize the effects of anticonvulsant medications.
Glutamine is metabolized to the excitatory neurotransmitter glutamate. Glutamate might have antagonistic effects with anticonvulsant drugs. However, this interaction has not yet been reported in humans.

Likelihood Possible Evidence D
The maker

Brand information

Manufacturer and brand details for Post BCAA Grape, from the product label.

ANS

See all ANS products
Name
ANS(R) ADVANCED NUTRITION SYSTEMS, LLC
City
Greenville
State
SC
ZipCode
29607
Phone Number
1.888.247.5326
Web Address
www.advanced247.com
Pharmacist Counseling Corner

Post BCAA Grape by ANS: Common Questions

Does Post BCAA Grape by ANS interact with any medications?
Yes. Based on its ingredients, Post BCAA Grape has a known interaction with 112 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Post BCAA Grape contains 6 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 I feel anything when I take this?
Yes — beta-alanine commonly causes a harmless tingling and flushing sensation, usually starting on your scalp within 20 minutes and spreading to most of your body, lasting about an hour. The intensity depends on the dose; lower doses cause milder or less frequent tingling. This is normal and not dangerous.
Is this safe to use if I'm pregnant or breastfeeding?
Potassium is rated likely safe in pregnancy and breastfeeding, but supplements should only be used under medical guidance. Beta-alanine and L-glutamine don't have enough safety data — the guidance is to avoid supplement doses of both unless your doctor recommends them. Talk with your doctor or pharmacist about whether this product is right for you during pregnancy or breastfeeding.
What are BCAAs and why are they in here?
BCAAs are branched-chain amino acids — L-isoleucine, L-valine, and L-leucine — three of the nine essential amino acids your body can't make on its own. Your muscles use them during and after exercise. They're included because athletes often use them to support muscle performance and recovery.
Does this product have any real evidence behind it?
Beta-alanine is possibly effective for athletic and physical performance, so there's some evidence there. L-glutamine is effective for sickle cell disease and possibly effective for muscle recovery after surgery or trauma. For the BCAAs themselves in this blend and the potassium, we don't have effectiveness ratings on file.
Can I take this if I have kidney disease?
You need to talk with your own doctor before taking this product. Potassium supplements can raise blood potassium to dangerous levels in people with kidney disease, and L-glutamine should only be used under medical supervision if you have kidney or liver problems.
What are the most common side effects?
The most common side effect from beta-alanine is harmless skin tingling and flushing. L-glutamine may cause belching, bloating, diarrhea, nausea, or abdominal pain. Potassium is generally well tolerated but can cause abdominal pain, diarrhea, nausea, or vomiting at high doses.

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

Not sure if Post BCAA Grape is safe with your meds?

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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.

Post BCAA Grape label
Sources

Sources & How We Checked

Post BCAA Grape'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 36 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.

Potassium 12 references
  1. McEvoy GK, ed. AHFS Drug Information. Bethesda, MD: American Society of Health-System Pharmacists, 1998.
  2. Gennaro A. Remington: The Science and Practice of Pharmacy. 19th ed. Lippincott: Williams & Wilkins, 1996.
  3. Whelton PK, He J, Cutler JA, et al. Effects of oral potassium on blood pressure. Meta-analysis of randomized controlled clinical trials. JAMA 1997;277:1624-32. PubMed
  4. Phillips, C. O., Kashani, A., Ko, D. K., Francis, G., and Krumholz, H. M. Adverse effects of combination angiotensin II receptor blockers plus angiotensin-converting enzyme inhibitors for left ventricular dysfunction: a quantitative review of data from ra DOI
  5. Altieri, P. I., Herrero, C., Suero, R., and Ortiz, A. Bleeding duodenal ulcer in a patient taking slow-releasing potassium tablets. Bol.Asoc.Med P.R. 1977;69(8):276.
  6. Raf, L. E. Enteric-coated potassium chloride tablets and ulcer of the small intestine. Acta Chir Scand Suppl 1967;(374):1-87.
  7. Potassium chloride oral solution [package insert]. Allentown, PA: Lehigh Valley Technologies, Inc.; 2014.
  8. Potassium chloride injection [package insert]. Lake Forest, IL: Hospira Inc.; 2009.
  9. Patel RB, Tannenbaum S, Viana-Tejedor A, et al. Serum potassium levels, cardiac arrhythmias, and mortality following non-ST-elevation myocardial infarction or unstable angina: insights from MERLIN-TIMI 36. Eur Heart J Acute Cardiovasc Care 2017 Feb;6(1):1 PubMed
  10. Malta D, Arcand J, Ravindran A, Floras V, Allard JP, Newton GE. Adequate intake of potassium does not cause hyperkalemia in hypertensive individuals taking medications that antagonize the renin angiotensin aldosterone system. Am J Clin Nutr 2016 Oct;104(4 PubMed
  11. Keskin M, Kaya A, Tatlisu MA, et al. The effect of serum potassium level on in-hospital and long-term mortality in ST elevation myocardial infarction. Int J cardiol. 2016 Oct 15;221:505-10.
  12. Stallings VA, Harrison M, Oria M; Committee to Review the Dietary Reference Intakes for Sodium and Potassium, Food and Nutrition Board, Health and Medicine Division, National Academies of Sciences, Engineering, and Medicine. Washington (DC): National Acad

See these in context on the Potassium monograph →

Beta-alanine 13 references
  1. Harris RC, Tallon MJ, Dunnett M, et al. The absorption of orally supplied beta-alanine and its effect on muscle carnosine synthesis in human vastus lateralis. Amino Acids 2006;30:279-89.
  2. Hill CA, Harris RC, Kim HJ, et al. Influence of beta-alanine supplementation on skeletal muscle carnosine concentrations and high intensity cycling capacity. Amino Acids 2007;32:225-33.
  3. Bellinger PM, Minahan CL. The effect of ß-alanine supplementation on cycling time trials of different length. Eur J Sport Sci 2016;16(7):829-36.
  4. Chung W, Shaw G, Anderson ME, et al. Effect of 10 week beta-alanine supplementation on competition and training performance in elite swimmers. Nutrients 2012;4(10):1441-53. PubMed
  5. Glenn JM, Gray M, Stewart R, et al. Incremental effects of 28 days of beta-alanine supplementation on high-intensity cycling performance and blood lactate in masters female cyclists. Amino Acids 2015;47(12):2593-600. PubMed
  6. Gross M, Bieri K, Hoppeler H, Norman B, Vogt M. Beta-alanine supplementation improves jumping power and affects severe-intensity performance in professional alpine skiers. Int J Sport Nutr Exerc Metab 2014;24(6):665-73. PubMed
  7. Howe ST, Bellinger PM, Driller MW, Shing CM, Fell JW. The effect of beta-alanine supplementation on isokinetic force and cycling performance in highly trained cyclists. Int J Sport Nutr Exerc Metab 2013;23(6):562-70. PubMed
  8. Sweeney KM, Wright GA, Glenn Brice A, Doberstein ST. The effect of beta-alanine supplementation on power performance during repeated sprint activity. J Strength Cond Res 2010;24(1):79-87.
  9. Décombaz J, Beaumont M, Vuichoud J, Bouisset F, Stellingwerff T. Effect of slow-release ß-alanine tablets on absorption kinetics and paresthesia. Amino Acids 2012;43(1):67-76. Erratum in: Amino Acids 2013;45(4):1015.
  10. Stellingwerff T, Anwander H, Egger A, et al. Effect of two ß-alanine dosing protocols on muscle carnosine synthesis and washout. Amino Acids 2012;42(6):2461-72. PubMed
  11. da Silva RP, de Oliveira LF, Saunders B, et al. Effects of ß-alanine and sodium bicarbonate supplementation on the estimated energy system contribution during high-intensity intermittent exercise. Amino Acids. 2019;51(1):83-96. PubMed
  12. Varanoske AN, Hoffman JR, Church DD, et al. Comparison of sustained-release and rapid-release ß-alanine formulations on changes in skeletal muscle carnosine and histidine content and isometric performance following a muscle-damaging protocol. Amino Acids. PubMed
  13. Perim P, Gobbi N, Duarte B, et al. Beta-alanine did not improve high-intensity performance throughout simulated road cycling. Eur J Sport Sci 2021. PubMed

See these in context on the Beta-alanine monograph →

Glutamine 11 references
  1. Miller AL. Therapeutic considerations of L-glutamine: a review of the literature. Altern Med Rev 1999;4:239-48..
  2. Bozzetti F, Biganzoli L, Gavazzi C, et al. Glutamine supplementation in cancer patients receiving chemotherapy: a double-blind randomized study. Nutrition 1997;13:748-51.. PubMed
  3. Mebane AH. L-Glutamine and mania. Am J Psychiatry 984;141:1302-3.
  4. Meldrum BS. Glutamate as a neurotransmitter in the brain: review of physiology and pathology. J Nutr 2000;130:1007S-15S.. PubMed
  5. Garlick PJ. Assessment of the safety of glutamine and other amino acids. J Nutr 2001;131:2556S-61S.. PubMed
  6. Chapman AG. Glutamate and epilepsy. J Nutr 2000;130:1043S-5S.. PubMed
  7. Ziegler TR. Glutamine supplementation in cancer patients receiving bone marrow transplantation and high dose chemotherapy. J Nutr 2001;131:2578S-84S.. PubMed
  8. Laviano A, Molfino A, Lacaria MT, Canelli A, De Leo S, Preziosa I, Rossi Fanelli F. Glutamine supplementation favors weight loss in nondieting obese female patients. A pilot study. Eur J Clin Nutr. 2014 Nov;68(11):1264-6. PubMed
  9. Endari (l-glutamine) [package insert]. Torrance, CA: Emmaus Medical,Inc; 2017.
  10. Niihara Y, Miller ST, Kanter J, et al. A Phase 3 Trial of l-Glutamine in Sickle Cell Disease. N Engl J Med 2018;379(3):226-35. doi: 10.1056/NEJMoa1715971.
  11. Ogden HB, Child RB, Fallowfield JL, et al. Gastrointestinal Tolerance of Low, Medium and High Dose Acute Oral l-Glutamine Supplementation in Healthy Adults: A Pilot Study. Nutrients. 2020;12(10):2953. PubMed

See these in context on the Glutamine 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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