On this website we encourage the use of lifestyle adjustments, healthy dieting, and natural supplements to prevent and treat diseases.
But occasionally, even natural supplements can have horrible side effects.
One popular supplement may even cause the scariest disease on earth: Alzheimer’s disease!
Many postmenopausal women take calcium supplements to prevent osteoporosis and its milder cousin osteopenia. The postmenopausal drop in their estrogen levels makes it more important than ever to take in between 1,000 and 2,000 milligrams of calcium per day. In fact, many older men also take calcium supplements because they are worried about the loss in bone density and possible bone fractures as they age.
Researchers at the University of Gothenburg in Sweden just published a study in the journal Neurology that suggests that this is not a good strategy for everyone.
They recruited 700 dementia-free women between the ages of 70 and 92. The study lasted for five years between 2000 and 2005.
At the beginning and end of the study, they subjected these women to detailed memory, thinking, and physical examination in addition to CT scans performed on most of them at the study’s onset. They also collected information on their calcium supplementation.
This is what they found:
o Women who had a history of stroke and took a calcium supplement were 6.7 times more likely to develop dementia than those without calcium supplementation.
o Women who had small lesions in their brains’ white matter and supplemented with calcium were 2.99 times more likely to develop dementia than those who did not use supplements.
o Women who had neither of these conditions and took calcium supplements had the same dementia risk as those who took no calcium supplements.
In other words, calcium supplementation is good for postmenopausal women with no stroke history or white matter lesions, but women who suffer from these two conditions should rather not take them.
Unfortunately, only 98 women in their study supplemented with calcium, making it difficult to generalize from such a small sample to the rest of the population. Accordingly, they recommend that further studies be performed to test their conclusion.