Title: When Is the Best Time to Take Vitamins?
Headings: When Is the Best Time to Take Vitamins?
When Is the Best Time to Take Vitamins?
Basic Guidelines
Types of Food
Time of Day
Vitamin A
B Vitamins
B Vitamins and Sleep
Vitamin B-6
Vitamin B-12
Vitamin B-3
Vitamin C
Vitamin C and Sleep
Vitamin D
Vitamin D and Sleep
Vitamin E
Vitamin K
Calcium
Magnesium
Multivitamins
A Word From Verywell

Content: Many manufacturers of vitamin A supplements recommend taking the products with a meal. B Vitamins
B vitamins—which include thiamine, folic acid, and riboflavin —help your body function properly and stay healthy. When your levels of certain B vitamins are too low, you might find that you're more tired than you should be. Confusion and anemia also can occur in severe cases, depending on which B vitamins you're lacking. 2 ﻿
Most people take B vitamins as a group, either in a multivitamin capsule or in a specific B vitamin supplement. B Vitamins and Sleep
There's a little evidence that certain B vitamins can interfere with sleep. But different B vitamins may have different effects. Vitamin B-6
Also called pyridoxine, this vitamin may cause vivid dreams and may improve your ability to remember dreams. Researchers in small preliminary study published in 2002 gave college students very large doses of vitamin B-6 over five days and found their dreams were more vivid, colorful, and bizarre than normal. 3 ﻿
You should be able to avoid this problem by taking vitamin B-6 in the morning.