Nutrition & Supplements
Supplements, peptides, diets and foods checked against the research: what the human trials found, the doses they used and the risks they saw. Plain-English verdicts with every source linked.
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A study of 12,772 adults tied heavy sweetener use to faster decline under age 60, but no study shows aspartame causes memory loss in people.
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Salt substitutes look safe for most adults: a 20,995-person trial saw 14% fewer strokes. With kidney disease or potassium-raising drugs, ask a doctor.
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Across 3 COSMOS trials of 5,203 adults over 60, a daily multivitamin seemed to improve memory slightly, but it has not been shown to prevent dementia.
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Ozempic may cause blindness only very rarely: about 1 extra case of sudden vision loss per 10,000 users a year in diabetes studies, usually in one eye.
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No. In two 2026 trials, high-dose vitamin K2 slowed calcium buildup in heart arteries but did not remove it. Heart attacks were not tested.
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It is a trade-off. In a trial of 9,971 healthy adults over 70, statins prevented about 2 heart events per 100 but did not clearly add healthy years.
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About one in five adults carry high Lp(a) and never find out. One lipoprotein a test settles the number for life, and it changes what else you treat now.
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The GLP-1 pill takes about 11% off body weight in 72 weeks, less than the shots do. Then the class failed its biggest Alzheimer’s trial. What the evidence says.
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A 2025 study found microplastics in brain tissue at about half a percent by weight. Here is what the spoon headline means, and why chemists dispute it.
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GLP-1 microdosing promises longevity and lower inflammation. No completed trial has tested it, and every dose curve in the real trials runs the other way.
