Sunday, May 04, 2008

Inspiration & Paradox 70: Milk does not build Bones -- The Calcium Paradox


I find the Calcium Paradox rather shocking to read, especially when all this while I have been told to top up my intake of calcium by drinking more milk.

Studies showed that postmenopausal women who were taking calcium supplements a day were associated with an increase, instead of a decrease in fractures. A huge research on traditional Chinese diet, disease, and lifestyle studied more than 10,000 people in 130 villages across China from the southern coast to the Gobi desert and found that populations that relied on plant-based sources such as vegetables and whole grains for their calcium had much less heart disease, cancer, diabetes, and obesity than North Americans.

Some nutritionists have thus warned against the consumption of milk for strong bones. The argument is that we all assume bones are made up from only calcium, but the truth is that our bones are built on a foundation of collagen, proteins, magnesium, calcium, boron and other minerals, which together form the bone matrix. Taking enough calcium is important for children who are growing bones, but calcium supplementation alone does not go well with adults in terms of density. Preventing osteoporosis does not depend on calcium alone, but rather on preserving the bone matrix. The bone matrix is a living tissue whose strength and structure depend on many factors including other minerals besides calcium, the absorption of these nutrients from the gut, physical activity, and lifestyle. Also, milk is acid-forming and it's calcium-magnesium-phosphorus levels are way out of balance for proper human absorption and utilization. Fruits and vegetables provide alkalinity and are highly beneficial for bone health.

No comments: