Critics and criticism are part of the landscape of our information rich world. Criticism can become abusive when it leads to [Pathologic Skepticism]?. Benford's Law of Controversy, as established by science fiction author Gregory Benford in 1980, states 'Passion is inversely proportional to the amount of real information available.'
In the United States, a dietary supplement is defined as a vitamin, a mineral, an herb or other botanical (excluding tobacco), an amino acid, a dietary substance for use by man to supplement the diet by increasing the total daily intake (e.g., enzymes or tissues from organs or glands), a concentrate, such as a meal replacement or energy bar, or a metabolite, constituent, or extract. It is intended to supplement the diet and bears or contains one or more of the following dietary ingredients. Supplements are sometimes called nutraceuticals, a portmanteau of nutrition and pharmaceutical.
Physical exercise is the performance of some activity in order to develop or maintain physical fitness and overall health. It is often directed toward also honing athletic ability or skill. Frequent and regular physical exercise is an important component in the prevention of some of the diseases of affluence such as cancer, heart disease, cardiovascular disease, Type 2 diabetes and obesity.
Medicine is the branch of health science and the sector of public life concerned with maintaining or restoring human health through the treatment of disease and injury. It is both an area of knowledge - a science of body systems, their diseases and treatment - and the applied practice of that knowledge.
Foods and beverages are any substances that can be consumed for nutritional value and to provide energy. Food is the main source of energy and of nutrition for animals, and is usually of animal or plant origin. Nutrients in food are grouped into several categories. Macronutrients means fat, protein, and carbohydrates. Micronutrients are the minerals and vitamins. Additionally food contains water and dietary fiber. In The Blood Type Diet System foods are often categorized and beneficial, neutral or avoid based on the reactivity of their constituent ingredients (such as Lectins?) with the biochemistry of a particular blood group.