Vitamin D: how to take it, how much to take, and why to test first
How to take vitamin D: once a day with food, as D3, at the daily amount or by your test. What trials on tens of thousands showed, and why bolus doses carry risk.
Why you can eat plenty of protein and still not absorb it
The protein you eat and the protein you absorb are two different numbers. Which tests show protein absorption, why albumin stays normal for so long, and how to check step by step.
PFAS and fiber: the first human signal that beta-glucan lowers forever chemicals in the blood
A 2025 pilot study in men: about 3 grams of oat beta-glucan a day for four weeks lowered long-chain PFAS in the blood. How viscous fiber traps them, the data's limits, and practical steps.
Omega-3: why many people don’t benefit from their supplements
The form of omega-3 decides how much reaches your cells. Triglycerides beat ethyl esters, enteric coating helps with fishy burps, and an Omega-3 Index above 8% is the goal.