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VLCDs are defined as a diet of 800 kilocalories (3,300 kJ) per day or less. [ 8 ] [ 9 ] Modern medically supervised VLCDs use total meal replacements , with regulated formulations in Europe and Canada which contain the recommended daily requirements for vitamins , minerals , trace elements , fatty acids , protein and electrolyte balance .
A desire to lose weight is a common motivation to change dietary habits, as is a desire to maintain an existing weight. Many weight loss diets are considered by some to entail varying degrees of health risk, and some are not widely considered to be effective.
A low-fat diet is one that restricts fat, and often saturated fat and cholesterol as well. Low-fat diets are intended to reduce the occurrence of conditions such as heart disease and obesity. For weight loss, they perform similarly to a low-carbohydrate diet , since macronutrient composition does not determine weight loss success. [ 1 ]
Historically, a healthy diet was defined as a diet comprising more than 55% of carbohydrates, less than 30% of fat and about 15% of proteins. [33] This view is currently shifting towards a more comprehensive framing of dietary needs as a global need of various nutrients with complex interactions, instead of per nutrient type needs. [34]
The Cambridge Diet was a very-low-calorie meal replacement fad diet developed in the 1960s. [1] The diet launched with different versions in the US and the UK. [1] The US version filed for bankruptcy [2] and shut down shortly after the deaths of several dieters. [3] The UK diet has also been known as the Cambridge Weight Plan, but is now known ...
The New Beverly Hills Diet, an updated version of the original diet, was released in a 1996 book also by Mazel. The original diet details a 42-day dieting plan, while the updated version is only 35 days long. The New Beverly Hills Diet also contains a long-term diet for dieters who have finished the 35-day regimen.
The fruits-and-vegetables diet was also successful, although it produced more modest reductions compared with the control diet (2.8 mm Hg systolic and 1.1 mm Hg diastolic). [27] In the subjects with and without hypertension, the combination diet effectively reduced blood pressure more than the fruits-and-vegetables diet or the control diet did.
The terms "healthy diet" and "diet for weight management" (dieting) are often related, as the two promote healthy weight management. [ 8 ] [ 9 ] If a person is overweight or obese, changing to a diet and lifestyle that allows them to burn more calories than they consume may improve their overall health, [ 2 ] possibly preventing diseases that ...