Caffeine is the most widely used legal stimulant of the central nervous system and is also used in Metabolife Ultra, with characteristics that have been described as restoration of alertness and removing from drowsiness. Coffee, Tea, many soft drinks and energy drinks as well as nutrition supplements have this ingredient, which is a psychoactive substance, a xanthine alkaloid that can act as a adenosine receptor antagonist, as well as a phosphodiesterase inhibitor. Although regular use of caffeine seems to have nootropic effects, enhancing cognitive abilities, it also is known to provide long term effects on the nervous and cardiovascular system, like in one study it was proven that people with normal to low blood pressure have the possibility of developing a heart disease significantly reduced, as well as the chance of getting the Parkinson’s disease.

Cellulose is the structural component of the primary cell wall of green plants, many forms of algae and the oomycetes. Cellulose is not digestible by humans and is often referred to as 'dietary fiber' or 'roughage', acting as a hydrophilic bulking agent for feces.

Dextrin is a low-molecular-weight carbohydrate produced by the hydrolysis of starch. Dextrins find widespread use due to their non-toxicity and their low price. They are used as water-soluble glues, as thickening agents in food processing, and as binding agent in pharmaceuticals.

Dextrose , otherwise known as D-Glucose, is a carbohydrate of extreme importance. It is given this credit because it is a source of energy for the body. A Monosaccharide is the basic form of a carbohydrate and has no color, but some of them do contain a sweetish taste. D-Glucose generally occurs in plants as a byproduct of the process of photosynthesis. In animals, it is formed by the breaking down of glycogen in the body by the liver and muscles. Besides this, in members of the animal kingdom, its presence is shown in blood and urine. The levels of D-Glucose in the blood can be maintained through the use of insulin. It is also used for the release of energy through respiration.

Di-Calcium Phosphate, also known as calcium monohydrogen phosphate is usually found as a hihydrate. However being a dibasic calcium phosphate, it can thermally be converted to its anhydroius form. Dicalcium phosphate is generally mined from the earth’s crust and may also be known as lime, calcium lime etc. However since di-calcium phosphate is incapable of breaking down completely, it is a poor source of replacing calcium in the bones. Since it contains calcium, Di-calcium phosphate will dissolve in the stomach acid (HCL). However since it is bound to phosphate, it will not be completely soluble. This results in partial dissolution and is insufficient for proper metabolism. This calcium from the di-calcium phosphate could collect in the arteries causing arteriosclerotic heart disease, or it could end up in the tissue making the skin age prematurely etc.

Lecithin is needed by every cell in the body and is a key building block of cell membranes; without it, they would harden. Lecithin protects cells from oxidation and largely comprises the protective sheaths surrounding the brain. It is composed mostly of B vitamins, phosphoric acid, choline, linoleic acid and inositol. Although it is a fatty substance, it is also a fat emulsifier.

Magnesium, which is a mineral used by the body to help maintain muscles, bones, and nerves. Magnesium is also needed for energy metabolism and protein synthesis.

Magnesium Stearate is coommonly used as a filling agent in the manufacture of capsules and tablets, such as vitamins, the source of this ingredient is typically bovine. However, there is an increasing number of vegetarian options in which the product specifically indicates it contains magnesium stearate from vegetable sources.

Maltodextrin is a form of glucose that is found in many foods as an additive. It is easy to digest and is almost flavorless. Maltodextrin is formed mainly from starchy products, such as corn and wheat. The starch in these foods is being used to produce maltodextrin through a process called hydrolisys. Maltodextrin is presently being used as an alternative to sugar because it has the ability to produce a sweet flavoring without as many calories. Although considered a carbohydrate, it has lower levels of properties as compared to carbohydrates, thus keeping the consumer free from worry about health issues. Maltodextrin is an effective and inexpensive way to get the required flavoring you desire in your favorite foods, without having to worry about your health.

Sodium Carboxymethylcellulose, also known as cellulose gum, is a food additive that is is commonly used in dairy based foods and deserts. It may also be used as an bulking agent, emulsifier. stabilizer and/or a thickener.

Sodium Citrate is a salt associated with critic acid. It occurs naturally in a variety of foods, including many fruits. It is also an intermediate product of aerobic metabolism in the human body. When consumed in food or produced in the body, sodium citrate quickly degrades into sodium bicarbonate, which functions as an acid buffer. Some studies suggest that taking sodium citrate as a dietary supplement before high-intensity exercise delays fatigue by increasing the availability of sodium bicarbonate in the muscles.

Stearic Acid is a saturated fatty acid that occurs in many animal and vegetable fats and oils. Stearic acid is useful as an ingredient in making candles, soaps, plastics, oil pastels and cosmetics, and for softening rubber. Stearic acid is used to harden soaps, particularly those made with vegetable oil. Even though stearic acid is a saturated fat, studies have suggested that it has little effect on blood cholesterol levels, because such a high proportion is converted to oleic acid.

Synephrine or oxedrine is a drug derived from bitter orange or Citrus aurantium. It is an aromatic compound with the systematic name 4-[1-hydroxy-2-(methylamino)ethyl]phenol which indicates that it has an attached hydroxyl group at para position and a methyl amino group at another position. It is not one of those compounds on which an extensive scientific study has been done. However, it has some positional isomers such as the neosynephrine as well as other compounds. Studies indicate that it could act as a Beta-3 adrenergic receptor which means that if taken as a supplement it enhances the breakdown of fat to release energy and also increases heat production in the muscles.