In a two-week study, 10 obese people reported consuming 1,000 calories per day.
Studies on very low-calorie diets providing less than 1,000 calories per day show they can lead to muscle loss and significantly slow down metabolism (5, 6, 7).
Bottom Line: Consuming too many calories can stop you from losing weight.
Is it OK to eat 1000 calories a day?
A low-calorie diet is one that restricts your intake to 1,200 to 1,600 calories per day for men, and 1,000 to 1,200 calories per day for women. Very low-calorie diets can help a person achieve weight loss of up to 3 to 5 pounds per week.
How many pounds do you lose if you eat 1000 calories a day?
So, in general, if you cut about 500 to 1,000 calories a day from your typical diet, you’d lose about 1 to 2 pounds a week.
How much weight can I lose on 800 calories a day?
However, a range of VLCD plans are available from the private sector for people – typically with a BMI over 30 – struggling to lose weight. The replacement foods are designed to contain all the nutrients the body needs, while providing 800 calories a day or fewer.
What happens if you don’t eat enough calories?
Low Energy Levels
When you don’t eat enough calories, you’re likely to feel tired most of the time. Although hormones also play a role in energy balance, generally if you take in more calories than needed, you will store most of the excess as fat. If you take in fewer calories than needed, you will lose weight.