Food that requires more calories to get digested than the amount of calories present in the food consumed itself is termed as negative calorie diet. The negative calorie diet is a well-known concept today we see in the dietary manuals and weight loss experts. There are a few scientific studies too that reveal that negative calorie diet is an effective and a natural way of losing weight.

How does the Negative Calorie diet work?

The negative calorie diet basically works on the simple principle of consuming food/foods that take extra effort (calories) by the body mechanism to break them down and process the diet. Calories in certain foods are difficult to be extracted by the body and this gives them the natural fat-burning property; so obviously they become very essential in the negative calorie diet.

The negative calorie diet typically works on the following theory: if you consume a dessert that contains say around 400 calories the body just burns around 150 calories for digesting the dessert, which still leaves with 250 calories that is available for the body and this adds up as fat to the body. But in case of the negative calorie diet the body will spend 80 calories to digest a 100 gram of broccoli salad that otherwise gives 55 calories. Here the body is burning fat to get the extra calories to digest the 100-gram broccoli. So the more you eat, the more fat you burn in the negative calorie diet.

It doesn’t advocate on the principle of starving to blast the excess pounds. Just eat such food that actually needs more calories than it can give for its digestion. There is a wide variety of food under the negative calorie diet that is tasty as well as same time have excellent calorie-burning properties. So what? You can happily eat to your heart’s content and still burn that extra fat.

Foods to eat and not to eat in Negative Calorie diet

While following a negative calorie diet eating vegetables such as, asparagus, beets, broccoli, cabbage, carrots, cauliflower, celery, chicory, chilli peppers, cucumbers, endive, garlic, lettuce, onions, spinach, turnip and zucchini is recommended.

Apples, cranberries, grapefruit, lemons, mangos, oranges, pineapple, raspberries, strawberries and tangerines are some of the fruits that can be included by those following the negative calorie diet regimen.

Several scientific studies prove that eating lot of vegetables and fruits keeps heart disease, hypertension and bad cholesterol at bay. Fruits also prevent a few types of cancer. However foods other than the ones suggested above in the negative calorie diet should be completely avoided in order to get effective results. Quite obviously, this diet says a strict no to sweets, canned and processed food as well as fried junk food.

The advantages of the negative calorie diet are:

Excess weight loss is achieved in a short time

The diet includes only consumption of healthy food, as the diet comprises of vegetables and fruits that are rich in vitamins, minerals and fiber that boosts the body metabolism

There is no need for preparation of the negative calorie diet as you can consume the food in its natural form, as in fruits and vegetables.

The cons of the natural calorie diet are that once the diet is stopped or rather you start with your normal diet you will start gaining weight pretty much normally; it doesn’t offer permanent weight loss solution.

Warning and side effects of the Negative Calorie diet

Although the negative calorie diet is very effective and safe in reducing weight, it could lead to a few physiological problems, as the body has to suddenly withhold the consumption of a large amount of calories. A few side effects or warnings of the natural calorie diet include:

  • There is no sufficient scientific evidence to support the working of negative calorie diet
  • The body is deprived of the regular eating pattern, which could lead to psychological problems.
  • All food and water with no balanced food make a dieter fatigued and weak in a few days of time
  • Menstrual irregularities that may crop up in women
  • Dizziness
  • Cold intolerance

Expectations and tips

The negative calorie diet no doubt is the natural and an effective way to lose oodles of pounds in a short span of time. Still, it is always a better idea to combine another suitable dietary plan along with the negative calorie diet to supply the body with adequate nutritional supplements. And, of course, any diet gives you best results when combined with a regular exercise regime. It is also advisable to consult a physician before getting started with the negative calorie diet, especially the pregnant women and children. This is however not a diet recommended for the diabetics.