Terry's Articles

Terry's Articles

Prevent Heart Disease with Vitamins A, D3, and K2Ref. #0108

Your heart and arteries have a full-time job, so they need nutrients that help keep blood vessels strong and flexible and keep calcium from interfering with your heart and cardiovascular system. If you’ve ever worried about high blood pressure, atherosclerosis, or stroke you need to read about the must-have vitamins that can make an amazing difference.

Terry's Bottom Line:

Vitamins A, D3, and K2 are the unsung heroes of our cardiovascular system. This trio of fat-soluble vitamins team up to ensure the proper function of your heart and the 60,000 miles of blood vessels. Yet most people don’t know how important it is to get enough of all three. And that lack of knowledge just might be slowly killing them.

Vitamins A, D3, and K2 work as partners to:

•       Keep calcium in your bones and out of your arteries

•       Prevent dangerous blood clots, heart attacks, and high blood pressure

•       Help keep arteries flexible and strong

•       Reduce inflammatory markers in the bloodstream


One of the most fascinating things about living in this age is the rapid acceleration in our understanding about how the body works and how we can use supplements to improve our health. As research continues, sometimes we need to take a step back and reevaluate what we know. How calcium works in the body is one of those things.

We’ve known for a long time that calcium is important to bone health, but unless you make your living studying human biology, you might not know everything calcium does in the body. Calcium plays a key role in cell signaling, blood clotting, and muscle contractions—including that most important muscle, the heart.

The Calcium Paradox: Good, Bad, or Both?

Calcium also has its dark side. If not properly regulated in the blood and tissues, calcium can build up in the body as we age—a process called calcification. Some calcification is relatively harmless. For example, half of all women over fifty will show some benign calcification in breast tissue during a mammogram. However, this accumulation may be an indication of further calcium build up in other areas of the body, like the arteries and the heart. This makes arteries stiff and inflexible, leading to increased risk of blood clots, strokes, and heart attacks. This negative aspect of calcium is sometimes called the Calcium Paradox— too little calcium in bones and too much in the arteries.

If you’ve been taking a calcium supplement, you might wonder if you should stop. But your bones need calcium to stay strong. What do you do? The important thing to remember is that your body doesn’t use nutrients, like calcium, in isolation. To make sure your body is using calcium optimally, you need to make sure you’re also getting enough of the vitamins that regulate calcium: the fat-soluble vitamins K2, D3, and A.

People with Higher Intake of K2 Had a Lower Risk of Death from Heart Disease

Vitamin K2: We’ve known about vitamin K for decades, especially for its importance in blood coagulation.

Vitamin K, though, comes in two forms: vitamin K1 (phylloquinone) and vitamin K2 (menaquinone).   Vitamin K1 is the form associated with coagulation (the ability of your blood to form clots and prevent excessive bleeding in cases of wounds and injuries). Your body uses vitamin K2 to activate proteins, such  as osteocalcin and matrix GLA-protein (MGP), that help carry calcium to where it’s needed  in the body. Osteocalcin puts calcium into bone tissue, making the bones stronger. MGP inhibits calcium accumulation in the arteries and other body tissues. Optimal levels of vitamin K2 ensure these proteins work the way they should.

The lower your intake of vitamin K2, the greater your risk of heart disease and a heart attack. The Rotterdam study, a large population-based study of older Dutch adults, looked at the relationship between vitamin K2 and coronary heart disease (CHD). Those people who had a higher dietary intake of vitamin K2 had a lower risk of death from CHD and severe aortic calcification. A 2012 study published in the Journal of Bone and Mineral Research examined patients with kidney disease. These patients develop calcium deposits in their arteries at twice the rate of the general population. In this study, more than a third of the patients were deficient in vitamin K, and those patients with low levels of vitamin K2 had significantly higher levels of calcification.

Vitamin D3: The sunshine vitamin is crucial to bone and heart health, but many of us still don’t get enough of it. That’s unfortunate, because we need it for calcium absorption and metabolism, as well as for bone formation and bone density. Vitamin D is also used by many cells in the cardiovascular system, including heart muscle cells and the cells that line the blood vessels. Low levels of vitamin D in the blood have been linked to a greater risk of dying from heart disease or stroke. Additionally, vitamin D has been found to decrease inflammatory markers associated with heart disease, such as C-reactive protein.

Vitamin D helps prevent calcium buildup in the blood vessels. It increases the expression of those vitamin K-dependent proteins that regulate calcium. Without enough of those proteins, calcium can’t get to bones and instead accumulates in the blood vessels and artery walls, causing stiffening. Of course, optimal levels of vitamin D require enough vitamin K to activate those proteins. Studies are finding that vitamin D and vitamin K work better when they’re both at optimal levels.

Vitamin A: Science is still piecing together the multiple effects of vitamin A in the body. Most people know that vitamin A is essential for healthy eyes, but it does so much more. It influences a number of body processes, including regulating various proteins that control the types of cells the body makes. This includes the cells that line blood vessels. In addition, vitamin A levels drop rapidly when inflammation is present, signaling its vital role in fighting disease and injury.

The form of vitamin A used in the body is retinol. Many multivitamins have replaced their retinol forms of vitamin A with beta-carotene. This worries me because beta-carotene isn’t the same as vitamin A. It’s a provitamin A carotenoid, meaning that it must be changed into retinol in the body in order for it to be useful. In addition, the absorption of beta-carotene can be low and is dependent on many factors, including genetic variations and whether it was consumed with fat (which improves absorption).

Researchers are also investigating the relationship between vitamins A, D3 and K2, and what they’re discovering is truly fascinating. Vitamin A and D appear to work together and both may be involved in the communication between cells, especially those cells involved in calcium regulation via vitamin K-dependent proteins.

A Healthy Heart Requires A Delicate Balance

Researchers are still finding out a lot about the requirements of a healthy heart and arteries. But one thing that keeps emerging is really just common sense—nutrients don’t work in isolation. The combination of vitamins A, D3, and K2 helps your body put calcium where it’s needed, and keeps it from settling where it isn’t. In addition, these vitamins have a direct impact on the way your heart and arteries respond to the challenges of keeping you going strong every day. That’s why I recommend this combination so you can enjoy vibrant health for the long term, naturally.

To keep your heart and arteries healthy, I recommend taking 10,000 IU of Vitamin A (as retinyl palmitate), 5,000 IU of Vitamin D3 (as cholecalciferol), and 45 mcg of Vitamin K2 (as menaquinone-7) daily.

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