Vitamin D is a fat-soluble vitamin. So any fat-soluble nutrient, like Gnarly Baseline D3, is always better absorbed when taken with food. As an aside, the same is true for something like turmeric, which is also fat-soluble.

If you have the access, it’s always a good idea to have your vitamin D tested annually to determine if you’re dealing with a clinical deficiency. When you’re tested, it will be your 25 hydroxy vitamin D levels that will be measured to determine Vitamin D status.

Usually if you’re vitamin D deficient, you’ll need to take more than 1,000 IUs to deal with that deficiency (the amount in one capsule of Gnarly Baseline D3).

Gnarly Baseline D3 was designed to help people avoid deficiency by providing the proper amount of supplementation (1000-2000 IUs daily) when lifestyle factors and environment might limit the amount of sunlight we get, and therefore vitamin D we naturally produce. 

For many this means supplementing in winter months when daytime hours are shorter and we spend less time outdoors with skin exposed.  For others supplementation may be required year round.