Collagen Supplements for Skin and Joints: What 113 Clinical Trials Found
Collagen is the most abundant protein in the body, but how well does supplementing it actually work? A 2026 umbrella review of 113 clinical trials is the most comprehensive look at the evidence yet.
Vitamin D3 and K2: Why These Two Work Better Together
Most people taking vitamin D3 don't realize they may need K2 alongside it. Here's the science behind why the combination matters more than either vitamin alone, and what recent clinical trials actually found.
Berberine and Blood Sugar: What a 50-Study Meta-Analysis Found
Berberine has been used in traditional medicine for centuries, but the modern clinical evidence is what's interesting. A 2024 meta-analysis pooling 50 RCTs and 4,150 participants is the strongest look yet at what it actually does to blood sugar and lipids.
Zinc and Immune Health: What the Research Says
Zinc is one of the most studied minerals in immune research. Here's what the clinical evidence actually says about how it works, who's most likely to be deficient, and what supplementation does and doesn't do.
Apple Cider Vinegar: What the Research Actually Says
Apple cider vinegar has been a wellness staple for years. The hype is real in some areas and overstated in others. Here's what the clinical evidence says about blood sugar, weight, digestion, and who it's most likely to help.