I'm wondering what exactly the difference is between beans, lentils, grains, nuts, and seeds. For example, what's the botanical difference between black beans, green lentils, rice, almonds, and sunflower seeds?
1 Always take your vitamin D supplements with or right after you have eaten a meal. The food in your system will help your body to process this nutrient.  It doesnât seem to matter what meal you take your supplement with. The time of day does not appear to affect your bodyâs ability to absorb vitamin D.
Vitamin D is measured in international units (IU). The Institute of Medicine recommends getting this much vitamin D every day: 1  Adults ages 19-70: 600 IU daily. 2  Adults older than 70: 800 IU daily.