Evidence-based articles on vitamins, minerals, supplements and nutrition — sourced, not opinionated.
Vitamin D deficiency is often silent. The signs authorities actually name are bone and muscle related — and the reason …
New research on creatine extends well beyond the gym. Here's what 2025 studies found about strength, muscle loss prevention, and …
Cost depends on whether the test is ordered for a documented reason or bought directly. Here is what determines the …
Ashwagandha is everywhere in the supplement aisle right now. A 2025 randomized trial tested it against melatonin, and against both …
Vitamin D is often marketed as a broad bone-health fix. A synthesis of Cochrane-level systematic reviews tells a more specific, …
Iron, vitamin D and B12 dominate the prevalence data, but for different reasons and in different populations. Here is what …
The 2025–2030 Dietary Guidelines for Americans, released January 2026, mark the first major consumer-facing rewrite in a quarter century — …
There is no single order code for 'full vitamin panel'. Here are the real test names, what each measures, and …
CDC data shows 38.7% of US adults who supplement take two or more products. Stacking supplements is common, but it …
