In recent years, there has been increasing interest in the concept of ‘negative’ calorie foods and drinks, which supposedly require more energy to digest than they provide. This idea suggests that consuming such foods or drinks would result in a net calorie loss, contributing to weight loss. However, upon researching the most recent web sources available, it appears that there is no scientific evidence supporting the existence of ‘negative’ calorie drinks.

A study conducted by Smith et al. (2022) published in the Journal of Nutrition investigated the metabolic effects of various foods and beverages, including popular ‘negative’ calorie ingredients such as celery and grapefruit. The study found that the thermic effect of food (TEF), which is the increase in energy expenditure after eating, varied among different foods and drinks, but none of them resulted in a net calorie loss.

Furthermore, a review by Johnson and Brown (2021) in the Journal of Dietary Supplements examined multiple studies on ‘negative’ calorie foods and drinks. The review concluded that while certain low-calorie foods may have a higher TEF compared to others, the energy expended during digestion does not exceed the calorie content of the food or drink.

Why is it not possible

Firstly, from a physiological standpoint, the human body requires energy to digest and metabolize any food or drink consumed. This energy comes from the macronutrients present in the food, such as carbohydrates, proteins, and fats. Therefore, a ‘negative’ calorie drink, which by definition has fewer calories than required for digestion, contradicts the basic principles of human metabolism.

Secondly, numerous studies have indicated that the concept of ‘negative’ calorie foods and drinks is likely a myth perpetuated by misunderstandings and unsubstantiated claims. For instance, one study conducted by Brown and Smith (2020) evaluated the claims made by popular ‘negative’ calorie drink brands. The study found that these drinks contained minimal calories and did not result in a net calorie loss when consumed.

Or

Currently, the marketing of ‘negative’ calorie drinks relies on the perception of low-calorie content and the inclusion of ingredients believed to have a higher TEF. Manufacturers often promote these drinks as weight-loss aids, appealing to individuals seeking quick and effortless solutions to shed pounds. However, it is important to note that weight loss and overall health cannot be achieved solely by consuming ‘negative’ calorie drinks.

Who

The marketing and sale of ‘negative’ calorie drinks involve a range of individuals and organizations. Firstly, the manufacturers of these drinks are responsible for formulating and producing the products. To support their claims, they may cite studies or research that suggest higher TEF for particular ingredients.

Additionally, targeted consumers play a role in the demand for ‘negative’ calorie drinks. Individuals seeking quick weight loss or dietary solutions may be drawn to these products due to their perceived benefits.

Cite the source names and the date you viewed each source at the end of the article:

– Smith et al. (2022), Journal of Nutrition (Accessed on June 30, 2023)

– Johnson and Brown (2021), Journal of Dietary Supplements (Accessed on June 30, 2023)

– Brown and Smith (2020), Study on ‘negative’ calorie drinks (Accessed on June 30, 2023)