The Bottom Line: There is no evidence that taking Z-Stack boosts immunity. Although vitamin C, one of the ingredients in Z-Stack, may help reduce the severity of colds and other respiratory infections, the dose in Z Stack is slightly lower than what has been shown to beneficial. Vitamin D and zinc in Z-Stack may be beneficial if you have lowSome evidence suggests that taking zinc supplements can shorten the duration of a cold by an average of 33% but excessive doses of vitamin C, vitamin B6 and zinc can cause unpleasant side effects. 66 votes, 75 comments. true. Although zinc is widely prometed as a life changer mineral, it's still a heavy metal and when taken in excess; you won't pee out the unnecessary amount like the case in Vitamin C. Additionally, zinc is a fairly easy nutrition to obtain from food. Senior study author Dr. Scott Ayton, Ph.D., says: “Zinc is an important metal ion in biology and, given that calcium and potassium are famous for controlling blood flow and pressure, it’s Vitamin E: Skip it - an excess has been linked to an increased risk of certain cancers, and you can eat spinach instead. The antioxidant Vitamin E was popularized for its alleged ability to protect against cancer. But a large 2011 study of close to 36,000 men found that the risk of prostate cancer actually increased among the men taking Vitamin
Stomach discomfort may be a sign you're taking too much zinc in a day. According to Medline Plus, the average adult in the United States consumes enough zinc in their diets to satisfy the recommended dietary allowance, or RDA, for zinc, at 11 mg and 8 mg per day, respectively. Be sure you have a zinc deficiency before taking zinc supplements.
To up your vitamin A intake, consider eating dairy products like yogurt and cheese, as well as fatty fish like salmon and tuna. As a bonus, salmon and tuna are also excellent sources of vitamins D dTKiL.