Juice cleansing is a “detox” diet that can last from a few days to several weeks in which a person consumes only fruit and vegetable juices to obtain nutrition while otherwise abstaining from eating food. Many people swear by cleanses and report an improvement to their health, mood, and appearance.
The scientific community, however, is less than enthusiastic about juice cleanses – many scientists, dietitians, and doctors regard detox diets as less effective than fasting with water, and, therefore, a waste of money.
That said, if you’re going to do one anyway, we recommend consulting with your doctor – or at the very least going along with an “official” juice cleanse program. Simply drinking any ol’ juice from anywhere around town is not a good idea.
#1 – Your metabolism will slow down
Once you stop eating enough food to meet your basic energy requirements, your metabolism will slow. For most people, that threshold of calorie intake is around 1,200 calories per day.
“Your body goes into conservation mode because it doesn’t know when its next meal is going to be,” says nutritionist Ilyse Schapiro MS, RD, CDN, and founder of ilyseschapironutrition.com. She reminds us that, even though cutting calories will lead to weight loss, going too low for too long can have the opposite effect.