Adding vitamins or minerals is an easy and inexpensive strategy to make water appear healthier. The cost of a ten-year supply of a day’s worth of vitamin C from China, for example, runs only about $1 wholesale.
B vitamins are especially popular among drink manufacturers. Just about every 20 oz. bottle of Glacéau Vitaminwater and Vitaminwater Zero, for example, delivers the Daily Value for B-5 (pantothenic acid), B-6, and B-12. Yet in dozens of studies, people who took B vitamins—or high doses of other vitamins—every day for years were typically no better off than people who took a placebo. Maybe these waters should be called placebo-enhanced instead.
Source: Ann. Intern. Med. 2014. doi:10.7326/M14-0198.
Other relevant links:
- Read labels to determine caffeine content in energy water. See: There’s Caffeine in Food, But What About Water?
- Electrolyte content in electrolyte-enhanced waters may not be significant. See: Do You Need Electrolyte-Enhanced Waters?
- Are the vitamins and weight loss supplements in Fuze Slenderize effective? See: Are There Waters that Can Help with Diet and Weight Loss?