Calorie restriction and fasting, whether for 12 or more hours every night or occasionally for longer periods, can contribute to lower body weight, blood sugar, and insulin resistance, plus fewer unpleasant chemotherapy-related side effects.
Affordability and access
Prescription required?
- No, but medical supervision may be needed for some people; see Safety and precautions ›
Other names and brands
Fasting may be referenced under these alternate names:
- Alternate-day fasting
- Calorie restriction
- Dietary restriction
- Short-term fasting
Where to access
- Because fasting or calorie restriction involve simply reducing eating, no purchase is needed.
Affordability
- Fasting and calorie restriction have no cost.