Table of Contents
Is fasting for 19 hours a day healthy?
“Evidence is accumulating that eating in a six-hour period and fasting for 18 hours can trigger a metabolic switch from glucose-based to ketone-based energy, with increased stress resistance, increased longevity, and a decreased incidence of diseases,” says the study.
Can you lose weight fasting 18 hours a day?
The study found that both an 18-hour and 20-hour fasting window worked equally well for weight loss by helping participants eat less without counting calories.
Is it OK to fast 20 hours everyday?
A study in 10 people with type 2 diabetes found that a fasting goal of 18–20 hours a day lead to a considerable decrease in body weight and significantly improved fasting and post-meal blood sugar control ( 9 ).
What happens 18 hours into a fast?
The fasting state lasts from about 18 hours to 2 days of fasting. By this point, your glycogen stores in the liver have been depleted, and your body begins breaking down protein and fat stores for energy instead.

What should I eat after 18 hour fast?
What to eat to break your fast
- Smoothies. Blended drinks can be a gentler way to introduce nutrients to your body since they contain less fiber than whole, raw fruits and vegetables.
- Dried fruits.
- Soups.
- Vegetables.
- Fermented foods.
- Healthy fats.
What does a 20 hour fast do to your body?
Fasting may improve blood sugar control A study in 10 people with type 2 diabetes found that a fasting goal of 18–20 hours a day lead to a considerable decrease in body weight and significantly improved fasting and post-meal blood sugar control ( 9 ).
Can you do 20 4 intermittent fasting everyday?
Once you have completed the three-phase diet, it is recommended you start it again before following the 20:4 guidelines. Depending on your goals, you may only adopt the 20:4 fasting method three times per week rather than making it a daily habit.
