Vitamin C improves metabolic measures

In this study, doctors measured vitamin C levels in 369 adults age 50 and found most fell below the adequate level of 50 micromoles of vitamin C per liter of blood.

Those with higher vitamin C levels tended to have lower weight, body mass index scores, triglycerides, long-term average blood sugar levels, and smaller waist size. Doctors also found a direct link: as vitamin C levels increased, signs of mild cognitive impairment decreased. Even though participants got an average of 110 mg of vitamin C per day—which should have provided adequate vitamin C levels— many participants had inadequate levels, possibly due to factors such as chronic health conditions. Commenting on the findings, doctors said that consuming more fruits, vegetables, and vitamin C supplements in particular is important for people in this age group.

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