Apple cider acts like a general toner for your body and especially for the digestive system. It soothes the digestive issues, has antibiotic effects, prevents indigestion and aids in weight loss.
The acetic acid suppresses the appetite, reduces water retention and interferes with the ingested starches, reducing the number of calories that will enter into your bloodstream. It also reduces the water retention and helps your body burn fats.
The grapefruit and apple cider vinegar combo diet involves consuming these two items mixed together, either in the form of a beverage or a pill.
There are a number of different variations of the diet, some of which just involve drinking a mix of grapefruit juice and apple cider vinegar before meals, and some of which involve using it as a meal replacement and eating very little, if anything, else during the course of the day.
This diet is considered a fad diet, so speak with your doctor before attempting to follow it.
Eating half a grapefruit or drinking a small glass of grapefruit juice before each meal may help slightly improve your weight-loss results, but you can’t count on it as your only weight-loss strategy. Eating a low-calorie premeal snack, such as water, grapefruit juice or half of a grapefruit, resulted in a small amount of weight loss in a study published in Nutrition & Metabolism in 2011, and those who had a grapefruit premeal snack enjoyed an improvement in their cholesterol levels.
Another study, published in Metabolism in July 2012, found that eating half of a grapefruit before meals resulted in a small but not clinically significant amount of weight loss, as well as slight decreases in both blood pressure and cholesterol.
There hasn’t been much, if any, scientific research on the potential for apple cider vinegar to improve weight-loss results, according to a review article published in American Family Physician in November 2004.
There’s also some risk in drinking apple cider vinegar, especially if it’s not mixed with something less acidic. For example, a girl in the Netherlands experienced erosion of her teeth due to drinking apple cider vinegar, according to an article published in Dutch Journal for Dentistry in 2012.