Vitamin D is a fat-soluble vitamin, meaning that it does not dissolve in water and is absorbed best in your bloodstream when paired with high-fat foods. For this reason, it's recommended to take vitamin D supplements with a meal to enhance absorption.Oct 23, 2018

Should D3 be taken in the morning?

The best time to take vitamin D supplements is when it fits your schedule. We recommend taking it with a source of quality fat in the morning or when you break your fast. … Since vitamin D is a fat-soluble vitamin—meaning it doesn't dissolve in water—your body can most easily absorb it when you take it with food.

Does vitamin D3 make you sleepy?

Among patients with vitamin D deficiency, an association between vitamin D levels and daytime sleepiness was seen only in black patients. But in these patients, higher vitamin D levels were associated with higher levels of daytime sleepiness, according to the study published online Dec.

When should I not take vitamin D3?

You should not use cholecalciferol if you have had an allergic reaction to vitamin D, or if you have: high levels of vitamin D in your body (hypervitaminosis D); high levels of calcium in your blood (hypercalcemia); or. any condition that makes it hard for your body to absorb nutrients from food (malabsorption).

Is there a difference between vitamin D and vitamin D3?

There are two possible forms of vitamin D in the human body: vitamin D2 and vitamin D3. Both D2 and D3 are simply called “vitamin D,” so there's no meaningful difference between vitamin D3 and just vitamin D.

Can I take vitamin D in the afternoon?

The commonly recommended daily dose of vitamin D is 600 IU (15 mcg) ( 3 ). Not only is getting vitamin D around midday more efficient, but it might also be safer than getting sun later in the day. One study found that afternoon sun exposure may increase the risk of dangerous skin cancers ( 9 ).

Is it better to take vitamin D every day or once a week?

Daily vitamin D was more effective than weekly, and monthly administration was the least effective.

Can you take D3 at night?

While the best timing has not been established, scientific data to confirm anecdotal reports that supplementing at night may interfere with sleep is unavailable. Current research suggests you can fit vitamin D into your routine whenever you prefer.