10 Most Absurd Fad Diets

Vinegar Diet
Apple cider vinegar has been used as a health remedy for many years, but it’s unwise to base an eating plan around any single ingredient. ©iStock/Thinkstock

Vinegar, specifically apple cider vinegar, is considered among some to be a healthy remedy for disease; some cancers, obesity and type 2 diabetes may be improved when apple cider vinegar is taken as a dietary supplement. Some studies suggest vinegar may have a beneficial effect on our glucose levels, and historically, white vinegar has been used as a way to feel satiated without overeating. But also, maybe not. Studies about the effect of vinegar as a dietary supplement are limited, at least in humans, but we do know there are risks: Vinegar is acidic and may cause esophageal damage (and damage to your tooth enamel, too). Too much vinegar could also lower your potassium levels, weaken your bones, and interact with certain medications.

Until we have more evidence, maybe save the vinegar for sprinkling on fish and chips or for cleaning the coffee maker.