Title: When Is the Best Time to Take Vitamins?
Headings: When Is the Best Time to Take Vitamins?
Nutrition
When Is the Best Time to Take Vitamins?
Water-soluble vitamins
Vitamin C
B vitamins
Fat-soluble vitamins
Vitamin A
Vitamin D
Vitamin E
Vitamin K
Multivitamins
The bottom line

Content: Ascorbic acid supplements have a bioavailability similar to that of the ascorbic acid found in foods like fruits and vegetables ( 6
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). You can take vitamin C supplements at any time of day, with or without food, although taking ascorbic acid with foods can help decrease the potential gastrointestinal side effects caused by its high acidity ( 7
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). Make sure to store vitamin C supplements in a cool, dark place, as this nutrient is sensitive to heat and light. Also, keep in mind that because excess vitamin C is excreted, doses over 1,000 mg typically aren’t needed — except under specific circumstances, such as during high-dose intravenous (IV) vitamin C treatment ( 8
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, 9
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, 10
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, 11
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). B vitamins
B vitamins are sold individually or as B complex supplements that contain all eight B vitamins. Because they’re water-soluble, you can take them with or without food and at any time of the day. That said, it’s often recommended to take B vitamins in the morning due to their important role in nutrient metabolism and energy production. What’s more, some people may benefit from taking B vitamins on an empty stomach. For example, it’s recommended that people with a B12 deficiency take B12 supplements on an empty stomach with water to promote maximal absorption ( 12 ). Summary
Water-soluble vitamins are not readily stored in your body, so you must consume them regularly to maintain healthy levels.