verdict-not-supported

The weight of qualifying evidence found no effect. A finding, not an absence of one.

A friendly heart character on a pedestal with an ECG trace running behind it, a testosterone vial and syringe, and a stethoscope

hormones

Testosterone replacement and the heart

Does testosterone replacement therapy increase cardiovascular risk?

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peptides

MK-677 for muscle and strength

Does ibutamoren build muscle or make people stronger?

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longevity

NMN for slowing aging

Does taking NMN improve any measured health outcome in humans?

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supplements

Vitamin C for preventing the common cold

Does taking vitamin C regularly stop you from catching colds?