Dieting emphasizes calorie restriction with the goal of losing weight, especially losing weight fast. While dieting could in theory consist of a balanced approach to food and nutrients that only limits calories, far more often diets disregard the fundamentals of good nutrition and only focus on weight loss. This is particularly true of fad diets that may seek to completely remove one entire type of food (for example no protein, no carbs, or no fat), or diets that get even more restrictive and only allow one or a few different types of food. while
By contrast good nutrition emphasizes a diet that provides a complete source of all the vitamins, minerals, nutrients, and calories the body needs for healthy functioning. Healthy diets generally include an abundance of fruits and vegetables, lean proteins, low (but not no) fat and healthy oils, and grains. Good nutrition will not generally ‘blacklist’ any food items, but will focus on portion sizes and keeping the consumption of less nutritious or highly processed foods to a minimum
