Glycaemic index The glycaemic index of a food is the rate at which the food raises blood sugar levels after it has been eaten. Obes Rev Systematic review. Main article: Calorie restriction. They subject the body to starvation and produce an average loss of 1. A healthy diet may help to prevent certain long-term chronic diseases such as heart disease, stroke and diabetes. Main article: Very low calorie diet. Many diets, especially crash diets, are geared to dramatically reducing the number of calories you consume.
The Zone? This leaflet explains the principles of a healthy diet. Bodybuilding supplements Meal replacement Therapeutic food. A randomized controlled trial comparing four diets concluded that the high-carbohydrate, low-glycemic index diet was the most favorable as it led to both high weight loss and a decline in low density lipoprotein. Retrieved June 26, Diets can also be used to maintain a stable body weight and improve health. Individual dietary choices may be more or less healthy. Dietary guidelines. Complete nutrition requires ingestion and absorption of vitamins, minerals, essential amino acids from protein and essential fatty acids from fat-containing food, also food energy in the form of carbohydrate, protein, and fat. The first source to which the body turns is glycogen by glycogenolysis. The typical dieter attempts 4 tries per year. Main article: Weight loss effects of water.
Keeping active and eating a healthy balanced diet can also help you to maintain a healthy weight. Deficiencies in some key nutrients – such as vitamin A, B, C and E, and zinc, iron and selenium – can weaken parts of your immune system. More about vitamins, minerals and nutrients. Maintaining a healthy weight and eating a balanced diet that’s low in saturated fat and high in fibre found in whole grains can help to reduce your risk of developing type 2 diabetes. More about type 2 diabetes. A healthy diet rich in fruits, vegetables, whole grains and low-fat dairy can help to reduce your risk of heart disease by maintaining blood pressure and cholesterol levels. Eating a portion of oily fish – such as salmon and trout – each week can also help to lower your risk of developing heart disease. The high levels of omega-3 fatty acids in oily fish are good for heart health.