The library

Performance & recovery

Keep performance claims tied to the activity, preparation and outcome that were studied.

284 articles · Page 5 of 12

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  1. Page 1Acetaminophen and glutathione: why overdose can injure the liverthrough Beta-alanine in food: dietary sources are not supplement-trial equivalents
  2. Page 2Beta-alanine in older adults: a laboratory fatigue thresholdthrough Collagen for plantar fasciitis: supportive tissue is not proof of treatment
  3. Page 3Foods and drinks for collagen powder: follow the product’s preparation limitsthrough Creatine for depression: a small trial tested an antidepressant add-on
  4. Page 4Creatine and type 2 diabetes: a small trial included exercise in both groupsthrough Does creatine boost metabolism? Muscle energy support is not a fat-burning promise
  5. Page 5Micronized creatine: one formulation trial does not establish class-wide superioritythrough Creatine during weight loss: distinguish training support from fat loss
  6. Page 6What should you avoid taking with creatine? Review caffeine, alcohol and medicines separatelythrough Supplements for getting lean, building muscle and losing fat
  7. Page 7GHOST BURN thermo: supplement facts, uses and risksthrough Lowering homocysteine: treat the cause, not just the number
  8. Page 8Homocysteine testing: what the blood result can and cannot showthrough NAC and glutathione: a precursor is not the finished molecule
  9. Page 9Noncanonical amino acids expand the chemistry available to engineered proteinsthrough Making protein powder less chalky: change the mixture gradually
  10. Page 10Protein powder with chronic kidney disease: no universal safe brandthrough Protein powder for teen athletes: identify a dietary gap first
  11. Page 11Protein timing: the recovery window is not a stopwatchthrough Taurine and a three-kilometre run: a small acute pilot
  12. Page 12Taurine in Red Bull: the manufacturer describes a synthetic sourcethrough What is in ZMA? Zinc, magnesium and vitamin B6
Ingredient guide

Can creatine stop your period? A missed cycle needs its own assessment

The inspected research does not establish creatine as a usual cause of stopped periods. Menstrual-cycle research on hydration and performance is different from proving that a supplement causes amenorrhea, and pregnancy, training changes and other health factors must not be overlooked.

2 sources
Ingredient guide

Creatine and muscle twitching: reports do not establish a usual cause

Muscle cramps have been reported by creatine users, but NIH describes them as anecdotal rather than a consistent adverse-effect pattern in studies. A new twitch or spasm still deserves attention to the complete supplement, training, stimulants and symptoms.

3 sources
Ingredient guide

Creatine in water: sediment, solubility and storage

Creatine monohydrate has limited water solubility. Visible sediment is not proof that it cannot be absorbed, and dry-powder stability does not establish the shelf life of a mixed drink.

1 sources
Ingredient guide

Creatine is not an anabolic steroid

Creatine and anabolic steroids have different structures and mechanisms. Similar claims about muscle gains do not make them the same substance.

2 sources
Ingredient guide

Creatine and testosterone: muscle gains do not prove a hormone boost

Creatine supports rapid muscle-energy transfer; it is not a synthetic testosterone product. The cited review does not support a general testosterone-raising effect, and improved training results should not be interpreted as proof of increased testosterone or growth hormone.

3 sources