Negative calorie food

Calorie restriction, or caloric control, is a dietetic rule reflection to improve health and slow the aging process by limiting dietary energy intake. Calorie restriction is a common measure found in several dietary regimens, including the Okinawa diet and the CRON-diet. Negative calorie food. The phrase negative calorie food is a word used by people who consider that there are positive foods which require more energy to digest than they provide nutritionally. Low nutrient, high cellulose foods such as celery are generally agreed to require very slightly more energy to digest than they provide nutritionally. These foods may be consumed within a weight-loss diet to potentially relieve the feeling of desire without contributing to total caloric intake. However, limiting a diet to only these foods would result in malnutrition.

Siddha medicine uses a number of "negative calorie" medical extracts. Although the correct composition of these medicines is unknown, they are believed to hold complex proteins such as snake venom. There is no scientific evidence on the effectiveness of these medicines.