Vitamin C supplements beneficial for reducing the vasoconstriction that is increased in overweight and obese adults.
The study conducted by researchers from University of Colorado recruited overweight adults to determine the health benefits of Vitamin C. The scientists compared the effects of Vitamin C and exercise on the protein known as entholin (ET-1), which has a constricting action on small blood vessels.
They divided 35 sedentary, overweight adults into two groups. The first group had 20 members who took 500 milligrams of Vitamin C daily for three months and the other group comprised of 15 participants completed three months of aerobic exercise training.
During the three-month study, neither the Vitamin C group nor the exercise group lost weight. However, both three months worth exercise and daily supplements of 500 milligrams of Vitamin C helped return all subjects vascular tone back to normal, healthy ranges.
The researchers concluded that daily supplementation of Vitamin C at a time-release dose of 500 mg daily reduced edothelin induced vessel constriction. They also found that the daily Vitamin C intake have similar cardiovascular benefits as regular exercise.
Exercise has been shown to reduce endothelin activity, but creating a daily life exercise habit can be difficult. Overweight and obese adults are encouraged to exercise to improve their cardiovascular health. However, more than 50 percent of these individual do not exercise.
Endothin is raised in overweight and obese people, causing blood vessels more prone to constriction, become less responsive to blood flow demand, and increasing the risk of vascular disease.
Vasoconstriction is the narrowing of the blood vessels resulting from contraction of the muscular wall of the vessels. When an artery constricts, the flow of the blood decreases and the pressure within the vessel rises. Vasoconstriction is a mechanism your body uses to regulate important functions such as body temperatures and blood pressure. IMAGE/shutterstock