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

German Creatine & L-Glutamine Ingredients & Drug Interactions

by Fitness Labs

German Creatine & L-Glutamine label
See full label image
Powder 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 German Creatine & L-Glutamine 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

German Creatine & L-Glutamine is a dietary supplement by Fitness Labs with 2 active ingredients. Its ingredients are commonly taken for muscle recovery and sports performance, gut health and 'leaky gut', recovery from severe illness or injury.Based on those ingredients, 50 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are L-Glutamine. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

Jump to a section

Check Your Meds Against German Creatine & L-Glutamine by Fitness Labs

Ask about any prescription or over-the-counter medication and we check it for interactions with German Creatine & L-Glutamine by Fitness Labs — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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HelloPharmacist Scorecard of German Creatine & L-Glutamine by Fitness Labs

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 30, 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 powder contains two active ingredients: L-Glutamine and Creatine Monohydrate. L-Glutamine is an amino acid your body uses for immune function, gut health, and muscle recovery.

Creatine monohydrate is a compound that helps muscle cells produce energy during intense exercise or activity.

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: promote muscle strength power and size gains.
  • We looked for evidence on: Athletic performance, Exercise-induced muscle damage, Muscle strength, Physical performance, Muscle breakdown, Sarcopenia — and 3 related terms.
  • The strongest evidence on file: Creatine is rated "Possibly Effective" for Athletic performance (Natural Medicines).
  • Also on file: Creatine is rated "Possibly Effective" for Muscle strength, Sarcopenia.
  • Also on file: Glutamine is rated "Possibly Ineffective" for Athletic performance.

L-Glutamine is rated effective for sickle cell disease and possibly effective for HIV/AIDS-related wasting, postoperative recovery, and critical illness from trauma. Creatine monohydrate is possibly effective for muscle strength, athletic performance, and sarcopenia (age-related muscle loss), though it's rated possibly ineffective for Huntington disease and osteopenia.

The evidence supporting either ingredient for general fitness or everyday wellness isn't established in the data we hold.

The evidence, ingredient by ingredient Glutamine Creatine

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.

L-Glutamine is generally well tolerated in healthy adults; people with kidney or liver disease should only use it under medical supervision. Common side effects include belching, bloating, constipation, diarrhea, flatulence, nausea, vomiting, headache, and gastrointestinal pain.

Creatine monohydrate is also generally well tolerated orally in healthy people, though those with kidney problems should be cautious. Its most common side effects are dehydration, diarrhea, gastrointestinal upset, muscle cramps, and water retention; rare serious concerns include kidney damage and muscle breakdown.

For L-Glutamine during pregnancy and breastfeeding, the data suggests it's likely safe in pregnancy, but there isn't enough safety information for nursing mothers—talk with your doctor or pharmacist for personalized guidance. For Creatine, safety during pregnancy has not been established and should be avoided, and there is not enough safety information for breastfeeding, so it should be avoided as well.

Side effects, ingredient by ingredient Glutamine Creatine

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?
  • 1 of the 2 matched ingredients can interact with medications — Glutamine.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: seizure medications.
  • For scale: 50 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 starting this product, check with your doctor or pharmacist if you take anticonvulsant medications (drugs for seizures)—L-Glutamine may theoretically reduce their effectiveness, though this hasn't been confirmed in patients. If you have kidney disease, mention that too, since both ingredients can be a concern for kidney health.

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 muscle strength and athletic performance (through creatine) or recovery from critical illness and wasting (through glutamine), but the evidence is limited. If you take seizure medication, check with your doctor or pharmacist before starting—L-Glutamine may interfere with how those drugs work.

People with kidney disease should also clear it with their healthcare provider first. Pregnant or breastfeeding women should discuss it with their doctor or pharmacist, as safety data is incomplete for both ingredients in these situations.

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 24, 2017.

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 German Creatine & L-Glutamine, straight from the product label.

Brand Fitness Labs
Barcode (UPC) 654186947552
Net contents 500 Gram(s); 1.1 lb
Market status On market
Date entered into DSLD Feb 24, 2017
DSLD ID 70424
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 German Creatine & L-Glutamine by Fitness Labs, 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:
10 Gram(s)
Maximum serving Sizes:
10 Gram(s)
Servings per container
50
UPC/BARCODE
654186947552
IngredientAmount% DV
L-Glutamine5 Gram(s)--
Creatine Monohydrate5 Gram(s)--

Other ingredients: Creatine Monohydrate

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.
General

Item No. 94-755

Formula

50:50 Blend of Creatine & L-Glutamine Powder Creatine (Creapure brand from Germany) & Pure L-Glutamine

Creatine & L-Glutamine Are Ideal For Athletes

For those who demand the best quality, we combine 5 grams of Creapure brand creatine from Germany and 5 grams of USP grade L-glutamine per serving.

It may help athletes work out at a higher intensity during resistance exercise.*

General Statements

May Promote Gains In: Power Strength Muscle Size Lean Muscle*

Get the two most popular sports nutrition supplements in one convenient formula.

Short-term supplementation of creatine monohydrate has been shown to significantly increase muscular performance.

L-glutamine helps regulate cellular metabolism and serves as fuel for cells. It also regulates cell volume and is a key building block of protein and muscle.* Here's more good news about L-glutamine. A study of 9 healthy athletes reported on in the American Journal of Clinical Nutrition showed a 430% increase in growth hormone within 90 minutes of taking a 2-gram oral dose of L-glutamine after a light breakfast. Growth hormone is one of the body's most anabolic (muscle building) hormones.*

Miscellaneous Only USP Grade L-Glutamine is used.

Potency -- Purity -- Guaranteed Quality

Order by Phone 800-338-7979 24 hours Customer Service 800-754-8000

Information provided on this site is solely for informational purposes only. It is not a substitute for professional medical advice.

Formulation

There are no fillers or additives.

Does Not Contain Fillers. Additives.

Suggested/Recommended/Usage/Directions

Directions For Use Stir 2 level, firmly packed scoops (10 grams) of powder into 8 ounces of water or high carbohydrate drink. Take once daily. Scoop enclosed. When to use: Take 2 scoops right after exercise. Drink plenty of water when taking creatine.

Brand IP Statement(s)

Only 100% Pure Creapure German Creatine is used Each batch is HPLC (High Pressure Liquid Chromatography) tested to guarantee potency and purity. This Creatine is manufactured in Germany under U.S. Patent No. 5,719,319. This patented manufacturing process eliminates unwanted by-products often found in lesser quality creatine. Creapure is registered trademark of AlzChem Trostberg GmbH.

2000-2015 Nutrition Express Corporation. All rights reserved.

Nutrition Express Low prices on America's best supplements

Storage

Storage Store in a cool, dry place.

FDA Disclaimer Statement

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

None of our statements or information, including health claims, articles, advertising or product information have been evaluated or approved by the United States Food and Drug Administration (FDA). The products or ingredients referred to on this site are not intended to diagnose, treat, cure or prevent any disease.

Precautions

Keep out of reach of children.

If you are pregnant, lactating, using prescription medication or under medical supervision for any condition, consult your physician before taking this or any dietary supplement.

Do not use this information for diagnosing or treating a health problem or disease, or prescribing of any medications or supplements.

Only your healthcare provider should diagnose your healthcare problems and prescribe treatment.

Please consult your healthcare provider before starting any supplement, diet or exercise program, before taking any medications or receiving treatment, particularly if you are currently under medical care.

Make sure you carefully read all product labeling and packaging prior to use. If you have or suspect you may have a health problem, do not take any supplements without first consulting and obtaining the approval of your healthcare provider. California Consumers – Proposition 65 requires sellers to notify California consumers of substances that are in many foods, plants, herbs and supplements with the following warning. WARNING: These products contain chemicals known to the State of California to cause birth defects or other reproductive harm.

FDA Statement of Identity

Dietary Supplement

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

See for yourself

German Creatine & L-Glutamine by Fitness Labs label

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

German Creatine & L-Glutamine 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 German Creatine & L-Glutamine by Fitness Labs

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

Serving size10 Gram(s) Dosage formPowder 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.

L-Glutamine

Interacts with
50 drugs
5 Gram(s) per serving

Glutamine is the most abundant amino acid in the body and is usually made in your muscles. A prescription form is FDA-approved to help reduce sickle c...

L-Glutamine monograph & interactions

Creatine Monohydrate

No known
interactions
5 Gram(s) per serving

Creatine is one of the most studied sports supplements, with solid evidence that it can boost strength and performance during short, high-intensity ac...

Creatine Monohydrate monograph & interactions

Other (inactive) ingredients: Creatine Monohydrate. These complete the product’s ingredient list but are not active constituents.

Interaction report

German Creatine & L-Glutamine by Fitness Labs Drug Interactions

Want to check YOUR meds against German Creatine & L-Glutamine?

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
50Drugs
50 Moderate

Ingredients driving the most interactions

L-Glutamine 50

Individual Drug Interactions

The ingredients in German Creatine & L-Glutamine interact with 50 drugs. Click any drug to see the details.

1 of the 2 ingredients in German Creatine & L-Glutamine interact with drugs. Each result below shows which ingredient is responsible. L-Glutamine

Each ingredient & the kinds of drugs it affects

For each ingredient in German Creatine & L-Glutamine with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.

L-Glutamine1 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
L-Glutamine full monograph & interactions
The maker

Brand information

Manufacturer and brand details for German Creatine & L-Glutamine, from the product label.

Fitness Labs

See all Fitness Labs products
Name
Nutrition Express
Phone Number
1-800-338-7979
Pharmacist Counseling Corner

German Creatine & L-Glutamine by Fitness Labs: Common Questions

Does German Creatine & L-Glutamine by Fitness Labs interact with any medications?
Yes. Based on its ingredients, German Creatine & L-Glutamine has a known interaction with 50 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
German Creatine & L-Glutamine 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 help me build muscle?
Creatine is possibly effective for muscle strength and athletic performance, so it may support muscle gains when paired with training. L-Glutamine is possibly effective for postoperative recovery and critical illness, but its role in everyday muscle building isn't established in our data.
What are the most common side effects?
From L-Glutamine, you might experience bloating, gas, constipation, diarrhea, nausea, or headache. From Creatine, common effects are water retention, muscle cramps, dehydration, diarrhea, or gastrointestinal upset. Most people tolerate both well, but start with a lower dose to see how your body responds.
Is it safe to take while breastfeeding?
L-Glutamine doesn't have enough safety data for nursing mothers, so avoid supplement doses unless your doctor recommends it. Creatine should be avoided while breastfeeding due to lack of safety information. Talk with your doctor or pharmacist for personalized advice.
Can I take this if I have kidney problems?
Both L-Glutamine and Creatine require caution if you have kidney disease. Use L-Glutamine only under medical supervision, and be especially careful with Creatine. Check with your doctor or pharmacist before starting.
Will this interact with my seizure medication?
L-Glutamine may theoretically interfere with anticonvulsant drugs because it breaks down into glutamate, which could work against seizure control. This hasn't been reported in actual patients, but it's a moderate concern—confirm with your doctor or pharmacist before taking this product.
What is L-Glutamine used for in this product?
L-Glutamine is an amino acid that supports immune function, gut health, and muscle recovery, especially after surgery or during critical illness. The evidence is strongest for sickle cell disease and possibly helpful for recovery from trauma or wasting from HIV/AIDS.

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

Not sure if German Creatine & L-Glutamine 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.

German Creatine & L-Glutamine label
Go deeper

The Full Monographs Behind German Creatine & L-Glutamine’s Ingredients

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

Herb & supplement monograph

Glutamine

Interacts with 50 drugs

Glutamine is the most abundant amino acid in the body and is usually made in your muscles. A prescription form is FDA-approved to help reduce sickle cell disease complications, but for most...

Read the full Glutamine monograph → Herb & supplement monograph

Creatine

Creatine is one of the most studied sports supplements, with solid evidence that it can boost strength and performance during short, high-intensity activities like weightlifting and sprintin...

Read the full Creatine monograph →
Sources

Sources & How We Checked

German Creatine & L-Glutamine'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 97 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.

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 →

Creatine 86 references
  1. Koshy KM, Griswold E, Schneeberger EE. Interstitial nephritis in a patient taking creatine. N Engl J Med 1999;340:814-5. PubMed
  2. Vahedi K, Domingo V, Amarenco P, Bousser MG. Ischemic stroke in a sportsman who consumed MaHuang extract and creatine monohydrate for bodybuilding. J Neurol Neurosurg Psychiatr 2000;68:112-3.
  3. Greenhaff P. Renal dysfunction accompanying oral creatine supplements. Lancet 1998;352:233-4. PubMed
  4. Vandenberghe K, Goris M, Van Hecke P, et al. Long-term creatine intake is beneficial to muscle performance during resistance training (abstract). J Appl Physiol 1997;83:2055-63. PubMed
  5. Hultman E, Soderlund K, Timmons JA, et al. Muscle creatine loading in men. J Appl Physiol 1996;81:232-7. PubMed
  6. Pritchard NR, Kalra PA. Renal dysfunction accompanying oral creatine supplements. Lancet 1998;351:1252-3. PubMed
  7. Poortmans JR, Auquier H, Renaut V, et al. Effect of short-term creatine supplementation on renal responses in men (abstract). Eur J Appl Physiol Occup Physiol 1997;76:566-7. PubMed
  8. Poortmans JR, Francaux M. Long-term oral creatine supplementation does not impair renal function in healthy athletes. Med Sci Sports Exerc 1999;31:1108-10. PubMed
  9. Mihic S, MacDonald JR, McKenzie S, Tarnopolsky MA. Acute creatine loading increases fat-free mass, but does not affect blood pressure, plasma creatinine, or CK activity in men and women. Med Sci Sports Exerc 2000;32:291-6. PubMed
  10. Rawson ES, Wehnert ML, Clarkson PM. Effects of 30 days of creatine ingestion in older men. Eur J Appl Physiol Occup Physiol 1999;80:139-44. PubMed
  11. Earnest CP, Almada AL, Mitchell TL. High-performance capillary electrophoresis-pure creatine monohydrate reduces blood lipids in men and women. Clin Sci (Colch) 1996;91:113-8. PubMed
  12. Juhn MS. Oral creatine supplementation. Separating fact from hype. Phys Sportsmed 1999;27:47-50,53-54,56,61,89. PubMed
  13. Juhn MS, O'Kane JW, Vinci DM. Oral creatine supplementation in male collegiate athletes: a survey of dosing habits and side effects. J Am Diet Assoc 1999;99:593-5.
  14. Green AL, Hultman E, Macdonald IA, et al. Carbohydrate ingestion augments skeletal muscle creatine accumulation during creatine supplementation in humans. Am J Physiol 1996;271:E821-6. PubMed
  15. Balsom PD, Soderlund K, Sjodin B, Ekblom B. Skeletal muscle metabolism during short duration high-intensity exercise: influence of creatine supplementation. Acta Physiol Scand 1995;154:303-10. PubMed
  16. Snow RJ, McKenna MJ, Selig SE, et al. Effect of creatine supplementation on sprint exercise performance and muscle metabolism. (abstract) J Appl Physiol 1998;84:1667-73. PubMed
  17. McNaughton LR, Dalton B, Tarr J. The effects of creatine supplementation on high-intensity exercise performance in elite performers. (abstract) Eur J Appl Physiol Occup Physiol 1998;78:236-40. PubMed
  18. Groeneveld GJ, Veldink JH, van der Tweel I, et al. A randomized sequential trial of creatine in amyotrophic lateral sclerosis. Ann Neurol 2003;53:437-45. . PubMed
  19. Robinson SJ. Acute quadriceps compartment syndrome and rhabdomyolysis in a weight lifter using high-dose creatine supplementation. J Am Board Fam Pract 2000;13:134-7. PubMed
  20. Kammer RT. Lone atrial fibrillation associated with creatine monohydrate supplementation. Pharmacotherapy 2005;25:762-4. PubMed
  21. Gualano B, Ugrinowitsch C, Novaes RB, et al. Effects of creatine supplementation on renal function: a randomized, double-blind, placebo-controlled clinical trial. Eur J Appl Physiol 2008;103:33-40. PubMed
  22. Pfeffer, G., Majamaa, K., Turnbull, D. M., Thorburn, D., and Chinnery, P. F. Treatment for mitochondrial disorders. Cochrane Database.Syst.Rev. 2012;4:CD004426. PubMed
  23. Boos, C. J., White, S. H., Bland, S. A., and McAllister, P. D. Dietary supplements and military operations: caution is advised. J R.Army Med Corps 2010;156(1):41-43. PubMed
  24. Kreider, R. B. Dietary supplements and the promotion of muscle growth with resistance exercise. Sports Med 1999;27(2):97-110. PubMed
  25. Juhn, M. S., O'Kane, J. W., and Vinci, D. M. Oral creatine supplementation in male collegiate athletes: a survey of dosing habits and side effects. J Am.Diet.Assoc 1999;99(5):593-595.
  26. Volek, J. S., Duncan, N. D., Mazzetti, S. A., Putukian, M., Gomez, A. L., and Kraemer, W. J. No effect of heavy resistance training and creatine supplementation on blood lipids. Int J Sport Nutr.Exerc.Metab 2000;10(2):144-156. PubMed
  27. Robinson, T. M., Sewell, D. A., Casey, A., Steenge, G., and Greenhaff, P. L. Dietary creatine supplementation does not affect some haematological indices, or indices of muscle damage and hepatic and renal function. Br.J Sports Med 2000;34(4):284-288. PubMed
  28. Tarnopolsky, M. A. Potential benefits of creatine monohydrate supplementation in the elderly. Curr.Opin.Clin Nutr.Metab Care 2000;3(6):497-502. PubMed
  29. Tarnopolsky, M. A. and MacLennan, D. P. Creatine monohydrate supplementation enhances high-intensity exercise performance in males and females. Int J Sport Nutr.Exerc.Metab 2000;10(4):452-463. PubMed
  30. Arciero, P. J., Hannibal, N. S., III, Nindl, B. C., Gentile, C. L., Hamed, J., and Vukovich, M. D. Comparison of creatine ingestion and resistance training on energy expenditure and limb blood flow. Metabolism 2001;50(12):1429-1434. PubMed
  31. Chrusch, M. J., Chilibeck, P. D., Chad, K. E., Davison, K. S., and Burke, D. G. Creatine supplementation combined with resistance training in older men. Med Sci.Sports Exerc. 2001;33(12):2111-2117. PubMed
  32. Cox, G., Mujika, I., Tumilty, D., and Burke, L. Acute creatine supplementation and performance during a field test simulating match play in elite female soccer players. Int J Sport Nutr.Exerc.Metab 2002;12(1):33-46. PubMed
  33. Kilduff, L. P., Vidakovic, P., Cooney, G., Twycross-Lewis, R., Amuna, P., Parker, M., Paul, L., and Pitsiladis, Y. P. Effects of creatine on isometric bench-press performance in resistance-trained humans. Med Sci.Sports Exerc. 2002;34(7):1176-1183. PubMed
  34. Brose, A., Parise, G., and Tarnopolsky, M. A. Creatine supplementation enhances isometric strength and body composition improvements following strength exercise training in older adults. J Gerontol A Biol.Sci.Med Sci. 2003;58(1):11-19. PubMed
  35. Volek, J. S., Ratamess, N. A., Rubin, M. R., Gomez, A. L., French, D. N., McGuigan, M. M., Scheett, T. P., Sharman, M. J., Hakkinen, K., and Kraemer, W. J. The effects of creatine supplementation on muscular performance and body composition responses to
  36. Tyler, T. F., Nicholas, S. J., Hershman, E. B., Glace, B. W., Mullaney, M. J., and McHugh, M. P. The effect of creatine supplementation on strength recovery after anterior cruciate ligament (ACL) reconstruction: a randomized, placebo-controlled, double-b DOI
  37. Groeneveld, G. J., Beijer, C., Veldink, J. H., Kalmijn, S., Wokke, J. H., and van den Berg, L. H. Few adverse effects of long-term creatine supplementation in a placebo-controlled trial. Int J Sports Med 2005;26(4):307-313. PubMed
  38. Astorino, T. A., Marrocco, A. C., Gross, S. M., Johnson, D. L., Brazil, C. M., Icenhower, M. E., and Kneessi, R. J. Is running performance enhanced with creatine serum ingestion? J Strength.Cond.Res 2005;19(4):730-734. PubMed
  39. Cramer, J. T., Stout, J. R., Culbertson, J. Y., and Egan, A. D. Effects of creatine supplementation and three days of resistance training on muscle strength, power output, and neuromuscular function. J Strength.Cond.Res 2007;21(3):668-677. PubMed
  40. Young, P., De, Jonghe P., Stogbauer, F., and Butterfass-Bahloul, T. Treatment for Charcot-Marie-Tooth disease. Cochrane.Database.Syst.Rev. 2008;(1):CD006052. PubMed
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