Instead of repeating myself, please read my response to a similar study last year. The title of the post was Do Calcium Supplements Cause Heart Attacks? and I hope this gives a clear explanation that the evil in this story is not the calcium supplement, but the fact that most people don't get enough vitamin K.
Why? Vitamin K is required by your body to understand where to put all that wonderful calcium. Without it, it'll get deposited into soft tissues (where it doesn't belong) and this becomes a problem when it gets deposited into the arteries (significantly increasing the risk of a heart attack and stroke).
This was totally coincidental, but just yesterday I covered a human study that showed* vitamin K2 in the form of MK-7 at just 180 mcg/day was able to reverse the negative cardiovascular effects of calcium.
(*more like implied, since the researchers didn't measure arterial calcium directly, but measured things affected by arterial calcium like elasticity)
What's particularly bizarre with this study on calcium was that the researchers actually investigated whether a higher intake of calcium might favourably modify cardiovascular risk factors. Am I out to lunch here? While some studies suggest calcium may help with blood pressure and cholesterol levels, calcium has never been used in a clinical setting to reduce cardiovascular risk factors (at least to my knowledge). In fact, I've known for many, many years, it's the opposite, just as the study's conclusion suggests. This gives me the itching desire to put on my conspiracy hat and say this could have been a witch hunt right from the beginning...but I won't go that far in this post.
For anyone taking calcium--and I've said this 1000s of times over the last 5 years or so--taking supplemental vitamin K2 is mandatory! Please peruse the links below and get the full story that mass media chooses to leave out.
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Source: Associations of dietary calcium intake and calcium supplementation with myocardial infarction and stroke risk and overall cardiovascular mortality in the Heidelberg cohort of the European Prospective Investigation into Cancer and Nutrition study (EPIC-Heidelberg)
- Human Study Suggests Vitamin K2 (as MK-7) REVERSES Arterial Calcification
- Vitamin K Boosts Bone Benefits of Calcium and Vitamin D
- Administration of Oral Vitamin K2 to Newborns
- Study Proves Vitamin K2 Supplements Reverse Deficiencies
- Vitamin K May Improve Cognitive Health in the Elderly
- Do Calcium Supplements Cause Heart Attacks?
- Warfarin, Vitamin K, and Heart Attacks from Calcium
- Vitamin K Improves Bone Mineral Density
- Low-Dose K2 (as MK-7) Proven to be Effective
- Vitamin K Deficiency Linked to Inflammatory Bowel Diseases
- Calcium & Vitamin D Linked to Kidney Stones -- More Reason for Vitamin K?
- Arterial Calcification Linked to Dementia
- Calcium with Vitamin D Reduces Premature Death Rate
- Calcium & D3 for Polycystic Ovaries and Kidney Disease
- Calcium with Phosphorus Reduces Intestinal Permeability
- Calcium Supplements Help Reduce the Risk of Endometrial Cancer
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