Fitness & performance

Betaine can be useful in specific training studies; it is not a guaranteed PR pill for everyone.

BCAAs (leucine/isoleucine/valine) is commonly associated with: muscle preservation marketing; fatigue in liver disease (specialized contexts). Our registry tags evidence as medium; this hub translates that into an ingredient-level verdict with safety and hype context - not individualized recommendations.

EAAs (essential amino acid blends) is commonly associated with: muscle protein synthesis marketing; fasting training stacks. Our registry tags evidence as medium; this hub translates that into an ingredient-level verdict with safety and hype context - not individualized recommendations.

L-Leucine is commonly associated with: mps signaling marketing. Our registry tags evidence as medium; this hub translates that into an ingredient-level verdict with safety and hype context - not individualized recommendations.

Pea protein isolate is commonly associated with: vegan protein completeness with blends. Our registry tags evidence as medium; this hub translates that into an ingredient-level verdict with safety and hype context - not individualized recommendations.

Rice protein isolate is commonly associated with: hypoallergenic vegan protein. Our registry tags evidence as medium; this hub translates that into an ingredient-level verdict with safety and hype context - not individualized recommendations.

Helpful in narrow cognitive stress models; less proven as daily anxiolytic.

Proteolytic enzyme from pineapple; digestion and post-workout swelling have some trial support. We summarize evidence, safety, and hype as editorial context-not medical advice.

Chondroitin is not cartilage regrowth in a bottle for everyone.

Green tea as beverage is fine for most; concentrated extracts change risk profile.

Glutamine matters in catabolic illness; healthy gut bloating often has many non-glutamine causes.

Collagen is not magic; selected trials suggest possible skin and joint symptom benefits, often industry-funded and modest in effect size.

Carnitine is not a stimulant fat burner for replete omnivores.

Colostrum is not infant formula replacement.

Humectant used for hydration and plasma volume; ergogenic data are mixed. We summarize evidence, safety, and hype as editorial context-not medical advice.

HMB shows signals in some populations for lean mass retention, but trained lifters often see null results in trials.

Arginine is real physiology; pills do not always recreate infusion physiology.

MCT oil calories still count.

PS is not a prescription cognitive drug.

Capsaicin is not a pain-free fat loss switch.

Collagen peptides (hydrolyzed) is commonly associated with: skin/joint marketing. Our registry tags evidence as low; this hub translates that into an ingredient-level verdict with safety and hype context - not individualized recommendations.

Fenugreek is not domperidone for lactation.

Hemp protein is commonly associated with: vegan protein + fiber. Our registry tags evidence as low; this hub translates that into an ingredient-level verdict with safety and hype context - not individualized recommendations.

L-Proline is commonly associated with: collagen-adjacent stacks. Our registry tags evidence as low; this hub translates that into an ingredient-level verdict with safety and hype context - not individualized recommendations.