Vitamin D Supplements

Vitamin D may not be a wonder cure -- in the same way a standing desk is unlikely to make you thin or entirely fix your posture. Some problems don't have simple answers - D. Cooper

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Expert Advice: The Dynamic Duo D3 + K2

D3 + K2 are a dynamic duo – here’s why you should take it...

While most people are familiar with the vitamin alphabet A through E, vitamin K is relatively unfamiliar. That’s largely because unlike these other vitamins, vitamin K isn’t typically used as a dietary supplement (but more on that in a minute). Touted for its coagulant properties, it’s needed by the liver to create an enzyme called thrombin, which helps the blood to clot.

Vitamin D3 is the same naturally-occurring vitamin you get from the sun. In northern climates, it can be tough to get enough. It’s important to the body in many other ways, from helping our nerves need it to carry messages from the brain to the…

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Resources

A Tortured Love of Vitamin D

Why it may never be possible to recommend that everyone take a supplement—as much as people want to believe.

Can Vitamin D Help Fight Covid-19?

Studies under way around the world are examining whether the ‘sunshine vitamin’ can help prevent or treat the new coronavirus.

The health benefits of sunlight: Can vitamin D help beat coronavirus?

We’ll learn more from randomised, controlled clinical trials that are currently under way, but for now the evidence that vitamin D supplements can prevent severe illness is pretty weak. But the importance of vitamin D for our bones isn’t in doubt and many of us simply aren’t getting enough.

Do You Need to Take Vitamin D?

Most healthy adults do not need to take vitamin D supplements. Extra vitamin D does not improve health in those without bone disease. Get your vitamin D the old fashioned way •Sun exposure (in limited quantities) •Healthy diet, including foods fortified with vitamin D

The Vitamin-D controversy

In my humble opinion, Vit-D is the most misunderstood, but over-recommended supplement on the Planet. What is worth noting is that it is, in fact, a Hormone — not a Vitamin, and it is also the FIRST hormone to exist on Planet Earth. Hmmmm.

Do You Need to Take Vitamin D?

Don’t trust the internet on vitamin D

Even world-class medical organizations are down on vitamin D pills, including Britain's National Health Service. In its advice, the body says that "most people don't need to take vitamin supplements and are able to get all the vitamins and minerals they need by eating a healthy, balanced diet." The British Heart Foundation agrees, saying that "there are no shortcuts when it comes to nutrition -- supplements are not a replacement for healthy food." They're right, and those snake-oil peddlers down at the drugstore are wrong, right? Not so much.

How Vitamin D and Vitamin K2 Help Osteoporosis

The researchers found that bone mineral density was significantly higher in the groups given vitamin D3 alone and vitamin K2 alone compared to the group that received only calcium. In addition, they found that the group that got the combination of vitamin D3 and vitamin K2 had the highest bone mineral density.

Millions of Americans take vitamin D. Most should just stop

Outside of rare cases, rigorous studies of the supplement don’t find any health benefit.

Should everyone be taking vitamin D?

Vitamin D is said to help stave off fatigue, depression and even cancer. But some experts argue that for people with healthy levels, supplements are not helpful. What’s the reality?

The Man Who Sold America on Vitamin D—and Profited in the Process

The doctor most responsible for turning the sunshine supplement into a billion-dollar juggernaut has received hundreds of thousands of dollars from the vitamin D industry, according to government records and interviews.

The Synergistic Interplay between Vitamins D and K for Bone and Cardiovascular Health: A Narrative Review

Vitamins D and K are both fat-soluble vitamins and play a central role in calcium metabolism. Vitamin D promotes the production of vitamin K-dependent proteins, which require vitamin K for carboxylation in order to function properly.

The Vitamin D Debate

There’s been a lot of controversy lately about vitamin D recommendations. If you’re confused about how much you should be taking, you’re not alone.

Vitamin D supplements are widely overused, doctors warn

Doctors are warning about vitamin D again, and it’s not the “we need more” news you might expect. Instead, they say there’s too much needless testing and too many people taking too many pills for a problem that few people truly have.

Vitamin D3 (and K2)

Increased levels of vitamin D require increased levels of vitamin K, especially of vitamin K2 (menaquinone). Without enough vitamin K2 there is an increased risk of hardening of the arteries and other soft tissues. Vitamin K2, along with vitamin D, are essential for the bones to uptake and incorporate calcium. Vitamin K2 is found in a soybean product called natto, and in dairy products and egg yolks. Recommended daily intake is 120 mcg for adult men and 90 mcg for adult women.