Vitamin D toxicity is very rare and typically involves too much calcium in the blood. Even Dr. Bruce Hollis, a pioneer in vitamin D research, has never personally seen a case of vitamin D toxicity. To develop vitamin D toxicity, you’d have to consume hundreds of thousands of IUs of vitamin D3 for months!

Vitamin D needs magnesium to function properly in the body. The more vitamin D you take, the more magnesium you need. Magnesium prevents vascular calcification, the main problem associated with vitamin D toxicity.

The vitamin D receptor is dependent on zinc. Like magnesium, your zinc requirements increase when you take vitamin D. Zinc deficiency symptoms include an altered sense of taste and smell, acne, flaky skin, and lowered testosterone.

When you increase your vitamin D intake, you’ll need more vitamin K2. Vitamin K2 helps prevent the buildup of calcium and also helps to drive calcium into the bones and teeth.

The active form of vitamin A, called retinol, is also an important cofactor for vitamin D. Vitamin A receptors sometimes bind with vitamin D receptors as a complex. Vitamin A also helps keep calcium out of your arteries.

Always take vitamin D3, not D2. Vitamin D2 is less potent and is typically synthetic. Avoid synthetic vitamin D3 supplements and supplements with fillers such as maltodextrin or glucose syrup.

Leafy greens, chocolate, certain nuts, and pumpkin seeds are the best food sources of magnesium. When choosing a supplement, look for magnesium glycinate. The best food sources of zinc are red meat and shellfish. If you take a zinc supplement, consume it in a blend with other trace minerals.

For every 10,000 IUs of vitamin D3 that you take, you’ll need 100 mcg of vitamin K2. MK7 is the best form. Vitamin K2 is found in high-quality grass-fed butter, kimchi, sauerkraut, grass-fed beef, and eggs.

It’s best to get your vitamin A from food. Egg yolks, liver, and cod liver oil are the best sources.

DATA:

https://pubmed.ncbi.nlm.nih.gov/3627603/

https://pmc.ncbi.nlm.nih.gov/articles...

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