Very few foods contain vitamin D; synthesis of vitamin D (specifically cholecalciferol) in the skin is the major natural source of the vitamin. Vitamin D is made in the skin from cholesterol dependent on sun exposure (specifically UVB radiation).
https://en.wikipedia.org/wiki/Vitamin_D
Effects of Inefficient Absorption. Decreased absorption of vitamin D -- whether due to inadequate dietary fat intake, an inability to absorb fat or treatment with therapies that affect vitamin D absorption -- can pose a health risk.
http://www.livestrong.com/article/548321-what-helps-absorb-vitamin-d/
Some of the biggest vitamin D deficiency symptoms include: 1  Weakened immune system. 2  Seasonal depression. 3  Autoimmune disease. 4  Cancer. Weak bones (osteopenia)  Skin issues eczema and 1  psoriasis. Dementia.
https://draxe.com/top-10-vitamin-d-rich-foods/
Some compounds prevent your body from properly absorbing vitamin D, so the absence of these compounds promotes proper vitamin D absorption. For example, using mineral oil as a constipation treatment can prevent proper vitamin D absorption, since the vitamin absorbs in the oil, then gets flushed from your body.
http://www.livestrong.com/article/548321-what-helps-absorb-vitamin-d/
Vitamin D refers to a group of fat-soluble secosteroids responsible for increasing intestinal absorption of calcium, iron, magnesium, phosphate, and zinc. In humans, the most important compounds in this group are vitamin D3 (also known as cholecalciferol) and vitamin D2 (ergocalciferol).
https://en.wikipedia.org/wiki/Vitamin_D
Vitamins are essential, which means fats are essential, too. Dietary fat, which comes from the food you eat, is crucial to the absorption of the fat-soluble vitamins, which includes vitamins A, D, K and E (water-soluble vitamins B and C don't need fat).
http://health.howstuffworks.com/wellness/food-nutrition/vitamin-supplements/fat-absorb-vitamins.htm
Vitamin D is oil soluble, which means you need to eat fat to absorb it. Natural foods high in vitamin D include fish oils, fatty fish, mushrooms, beef liver, cheese, and egg yolks. Vitamin D is also naturally made by your body when you expose your skin to the sun and is called the sunshine vitamin.
https://www.healthaliciousness.com/articles/high-vitamin-D-foods.php
Most foods, unless they are fortified, are poor sources of vitamin D and there are only a small amount of vitamin D rich foods to choose from. Vitamin D plays a role in calcium absorption into the bones. A deficiency in vitamin D can result in a softening of the bones called osteomalacia or a bone abnormality called rickets. Some of the biggest vitamin D deficiency symptoms include: Weakened immune system. Seasonal depression. Autoimmune disease.
https://draxe.com/top-10-vitamin-d-rich-foods/
Vitamin D -- an essential nutrient found in dairy products, fatty fish and fortified cereals -- plays a role in your health. It helps maintain strong bones and teeth, supports nerve and muscle function and interacts with your parathyroid gland to help maintain your body's hormone balance.
http://www.livestrong.com/article/548321-what-helps-absorb-vitamin-d/
Vitamin D is an essential vitamin required by the body for the absorption of calcium, bone development, immune functioning, and alleviation of inflammation. Vitamin D deficiency can lead to rickets, a weakened immune system, increased cancer risk, poor hair growth, and osteomalacia.
https://www.healthaliciousness.com/articles/high-vitamin-D-foods.php
foods that help the absorption of vitamin d
Fish oils, fatty fish, mushrooms, beef liver, cheese, and egg yolks are foods that help the absorption of vitamin d. Fish oils, fatty fish, mushrooms, beef liver, cheese and egg yolks are foods that help the absorption of Vitamin D.