What is Vitamin D3?

Vitamin D is a group of fat-soluble secosteroids that are responsible for increasing intestinal absorption of calcium, magnesium and phosphate. The most important compound in this group is Vitamin D3 which is known as Cholecalciferol.

Vitamin D3 is vital for the body as it regulates the calcium and phosphorus levels in your blood which are required to have healthy bones and a strong immune system. 

It has also been proven through clinical trials that strong levels of Vitamin D can also boost weight loss. In one study, subjects taking Vitamin D supplements were able to lose more weight than other subjects taking a placebo. The scientist behind this study claimed that the extra calcium and Vitamin D suppressed the subject’s appetite. 

How does your body absorb Vitamin D?

The Human Body is able to absorb Vitamin D through the small intestine, which is the most common route of absorption for most minerals. Vitamin D is then transported to the liver via the bloodstream and is converted to 25(OH)D, otherwise known as Calcidiol, the primary form of circulating vitamin D. Few foods contain Vitamin D naturally, therefore food manufacturers have created fortified foods which contain enhanced levels of the Vitamin, an example of these foods are cereals and dairy products. 

Foods that contain naturally higher levels of Vitamin D include salmon, egg yolk, prawns and sardines.

Your body is also able to create Vitamin D to help regulate the body and it is considered as a hormone. Vitamin D falls under the category of a steroid hormone and is produced in the liver and kidneys and it originates from the skin. 

When the skin is exposed to the sun, UVB, an ultraviolet wave that is emitted from the sun, triggers a biochemical reaction that initiates the production of Vitamin D. Cholesterol is the precursor in this process and is found in the skin, it is transformed into 7-Dehydro-cholesterol and when exposed UVB radiation it is transformed to Cholecalciferol (Vitamin D3). At this stage, it follows the same process as the food source and is metabolized in the liver and kidneys.

What is Vitamin K2?

Vitamin K2 belongs to the K Vitamin family which are essential for the body to produce prothrombin, a protein that promotes blood clotting and regulates bone metabolism. Research on Vitamin K2 also shows that it may prevent calcium buildup in the arteries, thus preventing risk to cardiovascular diseases

K2, or menaquinone, is present in small quantities in organ meats and fermented foods, importantly, the gut bacteria also produces Vitamin K2 as a byproduct of their metabolism.

Similar to Vitamin D3, Vitamin K2 is a fat-soluble vitamin and they are hey gain their entry to the blood via the lymph channels in the intestinal wall and many of them are required to be escorted by carrier proteins.

How do Vitamin D3 and K2 work together?

Vitamin D3 and K2 are fundamental for the regulation of calcium. Vitamin D3 and K2 ensure that calcium is absorbed easily and it reaches the bone mass, whilst preventing calcification of the arteries. Specifically, D3 allows the absorption of calcium and K2 activates a protein called osteocalcin, which integrates the calcium into the bones.

For reduced calcium plaques in the arteries, Vitamin K2 activates matrix GLA protein (MGP) to bind excess calcium which promotes arterial flexibility and total flow.

Summary

Vitamin D is a group of fat-soluble secosteroids that are responsible for increasing intestinal absorption of calcium, magnesium and phosphate.

Vitamin D3 is vital for the body as it regulates the calcium and phosphorus levels in your blood which are required to have healthy bones and a strong immune system.

Vitamin K2 belongs to the K Vitamin family which are essential for the body to produce prothrombin, a protein that promotes blood clotting and regulates bone metabolism.

Do Sunbeds Give You Vitamin D?

What is Vitamin D? Vitamin D is a group of fat-soluble secosteroids that are responsible for increasing intestinal absorption of calcium, magnesium and phosphate. The most important compound in this…