Author
Supplements
Nitrate supplementation for endurance: what the sources support
Beet juice, beetroot powder and sodium nitrate all deliver the same ion. The evidence for endurance gains is real but narrower than the marketing suggests.
Articles by Gordon Fielding
Supplements
Supplements that actually work: what the evidence supports
Most pills in the cabinet have thin evidence behind them. A few do not, and the difference matters.
Gordon Fielding
Supplements
Best supplement brands: How to spot a low-quality supplement before you buy
Certifications, label tricks and filler red flags, explained plainly — and where the extra money actually goes.
Gordon Fielding
Supplements
How are dietary supplements actually regulated?
Supplements reach shelves without FDA approval, but they are not unregulated — here is what the FDA and NIH say manufacturers actually have to do, before and after a product goes on sale.
Gordon Fielding
Supplements
What does creatine actually do? The evidence, weighed
Creatine is one of the few supplements with strong evidence behind it — for short-duration strength and power, in trained and untrained adults alike — and weaker evidence for the newer claims on its label frontier.
Gordon Fielding
Supplements
DMHA, higenamine and the hidden stimulants on banned lists
Synthetic stimulants and plant-derived beta-2 agonists keep appearing in supplements labeled as natural — and both sport and regulators treat them as prohibited or unlawful.
Gordon Fielding