Vitamin C deficiency is very common in Europe and North America because their eat more meat in daily diet, eat little vegetables. Depending on factors like their diet, age and even socioeconomic status, as many as one in five men and one in nine women don't get enough Vitamin C (L-ascorbic acid). While most people think of vitamin C as just an immune-boosting nutrient, Vitamin C,as an essential antioxidant, benefits all aspects of your health and wellness, including your brain health.