Decode a Claim

Decode a Claim: honest evidence checks on popular health claims

Every check states the claim plainly, grades the evidence behind it, and cites the primary studies or guidance, so the verdict is never just an opinion.

• Do collagen supplements improve skin and joints? Decoding the claim

  “Collagen supplements improve skin appearance and joint health.”

  Mixed evidence

• Do magnesium supplements improve sleep, anxiety, and blood pressure? Decoding the claim

  “Magnesium supplements improve sleep, ease anxiety, and lower blood pressure.”

  Mixed evidence

• Do NAD+ boosters like NR and NMN slow aging? Decoding the claim

  “NAD+ boosting supplements such as nicotinamide riboside (NR) and nicotinamide mononucleotide (NMN) slow aging and extend healthspan.”

  Not supported

• Do older adults need more protein than the RDA to prevent muscle loss? Decoding the claim

  “Older adults need significantly more protein than the RDA to prevent age-related muscle loss.”

  Mixed evidence

• Does a daily multivitamin improve health or longevity? Decoding the claim

  “Taking a daily multivitamin improves health and longevity.”

  Weak evidence

• Does fish oil protect the heart? Decoding the omega-3 claim

  “Fish oil supplements protect the heart.”

  Mixed evidence

• Does vitamin D prevent disease? Decoding the supplement claim

  “Vitamin D supplements prevent disease, so everyone should take them.”

  Mixed evidence

• Is intermittent fasting superior to calorie restriction for weight loss? Decoding the claim

  “Intermittent fasting and time-restricted eating produce superior weight loss and metabolic health compared with ordinary calorie restriction.”

  Weak evidence