Energy & Performance

Pre-workouts, CoQ10, beetroot, electrolytes, and athletic performance supplements.

CoQ10 (Ubiquinol)

CoQ10 (Ubiquinol)

Heart failure support, statin-induced myopathy relief, cellular energy production, antioxidant protection

Likely Effective8 products
Beetroot Powder

Beetroot Powder

Improves exercise endurance, reduces blood pressure, and lowers the oxygen cost of submaximal exercise via dietary nitrate conversion to nitric oxide.

Likely Effective10 products
Pre-Workout Formulas

Pre-Workout Formulas

Enhanced exercise performance through clinically dosed caffeine, citrulline, beta-alanine, and creatine

Mixed Evidence10 products
Electrolyte Powders

Electrolyte Powders

Replaces sodium, potassium, and other electrolytes lost during prolonged exercise, heat exposure, or acute illness

Likely Effective13 products
Taurine

Taurine

Blood pressure support, exercise endurance, cardiovascular and metabolic health

Likely Effective10 products
L-Carnitine

L-Carnitine

Exercise recovery, post-MI cardiovascular support, modest fat-loss adjunct, and male fertility

Mixed Evidence10 products
Acetyl-L-Carnitine

Acetyl-L-Carnitine

Diabetic peripheral neuropathy, cognitive aging support, mitochondrial energy in brain and nerve tissue

Mixed Evidence10 products
Spirulina

Spirulina

Modest improvements in lipid panel, blood pressure, exercise endurance, and inflammatory markers from a nutrient-dense microalgae

Mixed Evidence10 products
Phosphatidylserine

Phosphatidylserine

Modest support for age-related memory complaints; cortisol blunting in trained athletes at higher doses

Mixed Evidence9 products
Tart Cherry

Tart Cherry

Exercise recovery (DOMS, strength, oxidative stress) and modest sleep quality improvements

Mixed Evidence10 products
L-Arginine

L-Arginine

Nitric oxide precursor for vasodilation, mild ED support, and amino acid pool

Mixed Evidence10 products
Cordyceps

Cordyceps

Aerobic capacity and exercise tolerance, immune modulation, anti-fatigue support

Mixed Evidence9 products
Shilajit

Shilajit

Traditional Ayurvedic resin with limited but real evidence for testosterone support in older or subfertile men; most other claims are speculative

Mixed Evidence8 products
Agmatine Sulfate

Agmatine Sulfate

Sold heavily in pre-workouts for 'pumps' and as a neuropathic pain or mood aid; the marketing is far ahead of the human evidence on every one of those claims

Mixed Evidence8 products

FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. The products discussed on this page are not intended to diagnose, treat, cure, or prevent any disease. Always consult with a qualified healthcare professional before starting any supplement regimen.