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What to look for when picking a Vitamin D supplement
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Go back to pageVitamin D is a fat-soluble vitamin that can be stored in the body for long periods of time and can be consumed in two main dietary forms: D2 and D3.
D2, or ergocalciferol, is found primarily in plants, mushrooms, and yeasts. Whereas, D3, or cholecalciferol, is found primarily in animal products, like fatty fish or egg yolks.
However, when it comes to getting the most out of your Vitamin D, you'll want to opt for D3, as it is twice as effective at increasing blood levels than D2.
Vitamin D is a vital nutrient because it helps your:
body absorb calcium
nerves send messages to your brain and other important body parts
immune system fight off bacteria and viruses
muscles move and maintain vitality
Though Vitamin D is essential in helping your body absorb calcium, it's actually Vitamin K that helps guide calcium to the crucial spots in your body. Vitamin K also helps protect you from potential Vitamin D toxicity, making it a vital component to any Vitamin D supplement.
That's because, without the presence of Vitamin K, calcium could end up settling inside of arteries and blood vessels, instead of where it actually belongs.
For stronger bones and a healthier bloodstream, it's important to find a Vitamin D supplement that also includes Vitamin K.
Studies have shown that adults are at the highest risk of a Vitamin D deficiency, leading to increased fatigue and nerve damage.
These are all conditions that will inhibit your natural ability to absorb Vitamin D, even with a standard diet. For this reason, a supplement that is specifically designed for absorption may be the best option.
For instance, those carrying around a little extra weight tend to have excess fat that binds to Vitamin D and actually prevents it from getting into the blood.
Whether you live in a region with less sunlight or spend most of your day inside, it can be tough to get regular sun exposure. This is why most Vitamin D deficiencies occur in the winter.
(And of course, too much sun can cause a host of other problems, as well, so it's best to choose a high-quality supplement instead.)
Be wary of any supplement containing cyanobalamin or hydroxycobalamin. These are not only ineffective, but they can cause uncomfortable and even dangerous side-effects. This is largely due to the body's inability to properly absorb them, which can put strain on -- and eventually cause lasting damage to -- the liver.
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