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Why Do We Need Vitamin D3 and What Are The Best Sources

Updated: Jan 10

Why Do We Need Vitamin D3?

Humans need vitamin D3 for several important functions, including:

  1. Calcium and phosphorus metabolism: Vitamin D3 helps the body absorb and regulate calcium and phosphorus, which are essential for strong bones and teeth.

  2. Immune system function: Vitamin D3 plays a role in supporting the immune system and may help reduce the risk of certain diseases.

  3. Muscle function: Vitamin D3 helps regulate muscle function and may improve muscle strength.

  4. Mood and mental health: Vitamin D3 has been linked to improved mood and cognitive function and may play a role in reducing the risk of certain mental health conditions.

  5. Overall health: Vitamin D3 is important for overall health and well-being, and a deficiency can lead to several health problems.

How Much Vitamin D3 Should We Take?

The recommended daily allowance (RDA) of vitamin D3 for adults is 600-800 IU, and the tolerable upper intake level (UL) is set at 4,000 IU per day. However, it is always best to consult with a healthcare professional before taking high doses of vitamin D3, as excessive intake can lead to potential health problems. Some individuals may require higher doses of vitamin D3 due to medical conditions or low sunlight exposure, but these should be determined and monitored by a doctor.

People living in higher latitudes, such as the western countries, are more prone to vitamin D3 deficiency. This is due to reduced sun exposure, which is the primary source of vitamin D3, during winter months, and because of factors such as increased use of sun protection and skin pigmentation that can limit vitamin D3 synthesis. Additionally, dietary intake of vitamin D3 is often insufficient to meet the recommended daily levels, leading to a higher risk of deficiency in these populations.

What Are The Best Sources Of Vitamin D3?

The best sources of vitamin D3 include:

  1. Sunlight: Our bodies can make vitamin D3 when our skin is exposed to the sun.

  2. Foods: Foods that are naturally high in vitamin D3 include fatty fish such as salmon, mackerel, and tuna, as well as eggs and mushrooms.

  3. Supplements: Vitamin D3 supplements are also available in the form of pills or drops and can be taken orally.

It is important to note that while sun exposure can be a good source of vitamin D3, it is also important to protect your skin from the harmful effects of UV radiation by using sun protection measures such as wearing protective clothing and using sunscreen.

What Are The Risks Of Having Too Much Vitamin D3?

Having excessive amounts of Vitamin D3 over an extended period of time can be harmful and cause toxic symptoms. This condition is referred to as Vitamin D3 toxicity or hypervitaminosis D3. The symptoms of Vitamin D3 toxicity include anorexia, nausea, vomiting, constipation, weakness, weight loss, confusion, and abnormal heart rhythms. It is important to have a balanced and adequate intake of Vitamin D3 and to not exceed the recommended daily allowances.

Do You Need To Take Anything Else With Vitamin D3?

Vitamin K2 helps in the proper utilization of Vitamin D3 by directing the calcium to bones instead of soft tissues. Vitamin D3 helps the body absorb calcium from the diet, and vitamin K2 ensures that the calcium is properly deposited in the bones, where it is needed, instead of in the soft tissues, where it can cause damage. Hence, it is often recommended to take both vitamins together.

At Fortify Gut we have one of the best supplements for Vitamin D3 with Vitamin K2 all in one easy to swallow capsule. You can find this linked here

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