How Bone Adapts to Exercise Influenced by Calcium and Vitamin D Intake Timing

A new study conducted by American researchers suggests calcium and vitamin D intake before exercise may have an influence on how the bones adapt to the exercise.

The study lead author Vanessa D. Sherk, PhD, postdoctoral research fellow at the University of Colorado Anschutz Medical Campus, the timing of calcium supplementation, and not just the amount of supplementation, may be an important factor in how the skeleton adapts to exercise training.

Calcium and Vitamin Supplements
Calcium and vitamin supplements are taken to provide the body with the ''required'' nutrients. Calcium is a mineral found in many foods. Vitamins are very important nutrients for the body.

In the study, which included 52 men aged 18 to 45 years, investigators found that an exercise-induced decrease in blood calcium occurred whether calcium supplements were taken before or after exercising.

Pre-exercise supplementation, however, resulted in less of a decrease.

Although not statistically significant, parathyroid hormone levels increased slightly less among cyclists who took calcium before exercising.

Tamarind - The Calcium Pump
Tamarind is a tropical fruit with plenty of health benefits. Consumption of a tamarind beverage, sherbet, can easily meet the daily calcium recommendations and help keep bones and joints healthy.

"Taking calcium before exercise may help keep blood levels more stable during exercise, compared to taking the supplement afterwards, but we do not yet know the long-term effects of this on bone density," Sherk said.

The timing of calcium supplementation did not cause a difference in blood levels of a compound that is a biological indicator of bone loss.

Diet for Kidney Stones
Diet for kidney stone should comprise of calcium-rich foods, increased fluid intake. Other dietary recommendations depends on the type of kidney stone.

Both the before- and after-exercise groups exhibited 50-percent increases in the level of this compound, called CTX, for collagen type-1 C-telopeptide.

The study will be presented at The Endocrine Society's 95th Annual Meeting in San Francisco.

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Source-ANI