Vitamin D Absorption

Statin medications reduce cholesterol, cutting the precursor required for vitamin D synthesis in the skin. Chronic gut inflammation from IBD, IBS, or leaky gut acts as a significant barrier to vitamin D absorption. Insulin resistance, common in the general population due to high-carbohydrate diets, directly impairs vitamin D absorption. Vitamin D is fat-soluble and gets sequestered in adipose tissue in obese individuals, reducing circulating levels. Low gut microbial diversity impairs vitamin D absorption. Taking vitamin D with fat or a fat-containing meal significantly improves absorption due to its fat-soluble nature. When gut inflammation or digestive dysfunction is present, liquid vitamin D absorbs more efficiently than capsules.