'Nature's Ozempic'? Berberine Won 6 of 6 Lipid Tests—With a Catch
Social media calls berberine "nature's Ozempic," but what does the science say? A 2025 overview pooled 54 systematic reviews covering 70 health outcomes. Berberine improved all 6 of 6 cholesterol outcomes and about 93% of type 2 diabetes outcomes. Obesity was its weakest area, and 45 of the 54 reviews were rated very low quality. Here is what the evidence supports, how berberine is commonly dosed, and who should steer clear.
Magnesium for Sleep? 12 Trials Say the Hype Outruns the Evidence
Magnesium is marketed as a natural sleep aid, but a new systematic review of 12 randomized controlled trials in adults says the evidence doesn't support it as a routine insomnia treatment. Results were inconsistent across questionnaires, EEG, actigraphy and wearables, and certainty was low to very low. The review used narrative synthesis rather than a meta-analysis because the trials differed so much in forms, doses and populations. Some adults may still see modest subjective benefits, particularly those with low intake. Here's what the paper found, what it didn't, and how to approach a magnesium trial sensibly.