Low-carbohydrate diets are implemented in different ways, but they restrict grains, cereals and legumes, and other carbohydrate-containing foods; such as dairy, most fruit and certain vegetables. Balanced-carbohydrate diets contain more moderate amounts of carbohydrates, protein and fats, in line with current healthy eating advice from health authorities. .When used for weight reduction, balanced diets recommend restricting the amount of energy eaten by guiding people to reduce their portion sizes and choose healthier foods.They analysed to find out which of these two diets is better for weight loss and heart disease risks. 61 trials involving 6925 people who were overweight or living with obesity. All except one of the trials were conducted in high-income countries worldwide. The average starting weight of people across the trials was 95 kg. Most studies lasted for six months or less and the longest studies lasted for two years.The evidence showed that there is probably little to no difference in the weight lost by people following low-carbohydrate weight-reducing diets compared to the weight lost by people following balanced-carbohydrate weight-reducing diets, for up to two years. There was very little difference between the diets for changes in heart disease risks up to two years.