Juice fasting
Juice fasting

Background

Juice fasting is a diet that consists entirely of fruit and vegetable drinks. These are usually very low-calorie diets and typically last for 3-10 days.

Some people use juice fasting for obesity and to remove toxins from the body, but there is no good scientific evidence to support its use for any purpose.
Juice fasting is POSSIBLY UNSAFE. Juice fasting does not provide proper nutrition and can cause a person to develop nutritional deficiencies. It has also been reported to cause kidney injury in healthy people.

Special Precautions & Warnings:

Pregnancy and breast-feeding: Juice fasting is POSSIBLY UNSAFE when pregnant or breast-feeding. Juice fasting does not provide adequate nutrition for either the mom or the baby.

Effectiveness

NatMed Pro rates effectiveness based on scientific evidence according to the following scale: Effective, Likely Effective, Possibly Effective, Possibly Ineffective, Likely Ineffective, Ineffective, and Insufficient Evidence to Rate.
Likely effective Effectiveness definitions
Possibly effective Effectiveness definitions
Likely ineffective Effectiveness definitions
Possibly ineffective Effectiveness definitions
Insufficient evidence Effectiveness definitions
  • Obesity. The effect of juice fasting in people who are obese is unclear. When used by people who are not obese, juice fasting does seem to reduce weight. But it seems to reduce muscle mass as well.
  • Other conditions.
More evidence is needed to rate juice fasting for these uses.

Dosing & administration

Juice fasting typically only allows for drinks and smoothies made from fruits and vegetables. It is very low in calories, and may only include 150-300 calories each day. Most people juice fast for 3-10 days before returning to a normal diet.

Interactions with pharmaceuticals

It is not known if this diet interacts with any medicines.

Before using this diet, talk with your health professional if you take any medications.

Interactions with herbs & supplements

There are no known interactions with herbs and supplements.

Interactions with foods

There are no known interactions with foods.

Action

Some people claim that juice fasting can help the body to clear out toxins. They also claim that it increases energy. But there is no good scientific evidence to support these claims.
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This monograph was last reviewed on 17/12/2024 11:00:00 and last updated on 12/08/2020 02:05:13. Monographs are reviewed and/or updated multiple times per month and at least once per year.
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