Timing of Calcium and Vitamin D Supplementation Effects Calcium Loss
Sweating from exercising can result in a loss of calcium. Over time, this can lead to a decrease in bone mineral density. A recent study suggests that taking calcium and vitamin D supplements before rather than after exercising may help keep calcium blood levels stable during exercise.
Participants in the study included 52 men between the ages of 18 and 45. Half of the group took 1,000 mg of calcium and 1,000 IUs of vitamin D 30 minutes before exercising while the other half took the same amount one hour after completing a 35-kilometer time trial.
All of the participants wore skin patches to absorb their sweat.
The researchers measured calcium and parathyroid hormone levels before and after the exercise. They found that calcium decreased in both groups but that the group who took the supplements before exercising had a smaller decrease.
Researchers from the University of Colorado conducted the study. It was presented at the 95th Annual Meeting of The Endocrine Society in San Francisco, California.
Calcium is a mineral that is essential for bone strength. A lack of calcium can lead to osteoporosis, a serious health issue characterized by low bone mass which leads to an increased risk of fractures. Vitamin D aids in calcium break down and absorption. Several studies have also suggested that calcium and vitamin D may play a role in the regulation of abdominal fat mass.
Consumption of vitamin D has been linked to reducing the risk of osteoporosis and high blood pressure in mature adults, improving kidney health, reducing the risk of skin cancer, improving cardiovascular health, combating diabetes, and improving age related eye degeneration.