As early as 1992, the USDA Human Nutrition Research Center at Tufts University in Boston published a randomized field study involving several hundreds of participants of all age groups. The results of the study showed that increased vitamin C blood levels were associated with a reduction in LDL cholesterol (“bad cholesterol”) and an increase in HDL cholesterol (“good cholesterol”). As the human body cannot produce its own vitamin C, the blood level of this vitamin is only determined by food intake or dietary supplementation. Further details can be found in the study.


Yuanyuan Guan, Pengju Dai, Hongwu Wang


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