AMINO ACIDS
Protein that has been ingested eventually breaks down into amino acids, which develops your body's enzymes and digestion. This acid also helps greatly with muscle tissue repair post workout and while you are asleep.
Essential amino acids can only be obtained from food sources, whereas non-essential amino acids occur naturally in your body.
The best amino acids are leucine, valine and isoleucine (all of which promotes muscle growth and development) and glutamine in it's most raw form will give a quick burst of energy.
 Joey Capone

Creatine
Creatine is synthesized in the liver which produces sufficient amounts for normal activities. The function of creatine is to help supply energy to the muscles. It is found naturally in skeletal muscles and studies have shown that ingesting creatine increases the level in the muscles. They have also shown that supplementing with creatine does increase performance and help build muscle mass. It is not considered 'doping' and its use is not banned by sports bodies.
Gerry Marsh

Fat burners
Fat burners are a popular method for losing weight. Fat burners work by stimulating your metabolism.
This, in turn, causes your system to utilize your stored fat for energy. When this occurs your waist will
become smaller. Those love handles that you have become use to will start to dissolve away.
Kathryn Soloff

Glutamine
L-Glutamine is an amino acid which is normally produced in sufficient quantities by the body itself. However, during times of stress such as during exercise, illness or an immune disorder, your body cannot keep up with the demand. Glutamine helps in energy recovery, muscle rebuilding, fueling the brain and strengthening the immune system. It also encourages the production of Human Growth Hormone. Pure glutamine is available and inexpensive but it is quite bitter. Because of this, many suppliers offer it combined with other supplements to mask the bitterness.
Gerry Marsh

Meal replacement
Meal replacement supplements are very important in case someone doesn't have enough time to prepare food. Meal replacement supplement are the real substitute for proper meal. By taking it anyone can get the benefit of a balanced and nutritious food. Meal replacement supplement is available as powder, shakes and also bars. It is not at all expensive if you compare it with a full meal as well. Meal replacement supplement can be divided into two categories as it can be used as weight reducer and also sometimes as weight gainer. Meal replacement supplements are very popular among the women as because it helps to loose calorie and fat along with getting the proper nutrition
Robin Brain

Multivitamin
The importance of multivitamin and mineral supplements is overlooked by many athletes. No, they don't pack a lot of lean muscle on you. But they are extremely important in the chain of reactions that occur to produce that lean muscle and contribute to your overall fitness. The thousands of chemical processes that go in your body are all dependent upon vitamins. Taking a high-potency multivitamin is cheap insurance in your Training program.
Gerry Marsh

Nitric oxide
Nitric Oxide supplementation made it's first noticeable mark in the supplement industry with MRI NO2, which was a successful supplement yet didn't have the fine tuning of the ones to follow. When taking nitric oxide supplements, you are rapidly amplifying your mental focus, performance levels during exercise, increasing strength and ultimately, training intensity. Many nitric oxide supplements today offer a rapid release that takes anywhere between a few minutes to thirty minutes for the product to take affect.
Jiri Cermak

Protein
Casein Protein
This type of protein is also known as Milk Protein. Casein Protein is enriched with glutamine. This protein helps in fast recovery. It also has casomorphin. It helps in absorbing the amino acids across a long time.

Egg Protein
The white portion of egg contains lactose- and dairy-free protein. It works also as the most effective protein supplement and is extremely beneficial for health of the young and old alike.

Soy Protein
Soy Protein is comprised with all essential amino acids. For the vegetarians Soy Protein has been considered as the alternative protein. Isoflavones, a type of phytoestrogen is also present in Soy protein.
Robin Brain

Whey Protein
Building muscle mass quickly requires a protein supplement and there is no better source than whey protein. It is pure protein from cow's milk. Whey protein contains little if any fat, lactose or cholesterol and is a rich source of essential amino acids. Whey protein isolate is the purest form and is an ideal supplement for our use.
Protein synthesis is important for rebuilding tissue, developing the hormones and enzymes which are responsible for healthy bones, blood and skin
 Joey Capone

Testosterone boosters
Testosterone boosters are health supplements that are commonly used by bodybuilders with an intention to accelerate the process of muscle mass growth or to build more lean muscle mass in their body. Studies conducted in this field indicate that high level of testosterone hormone in the body will enable a person to increase the lean muscle mass in the body and to increase the muscle strength.
Dane Bergen

Weight Gainers
Weight gain shakes are designed to do just that - help you GAIN WEIGHT. They are filled with calories that help you make up you calorie range for the day.
Here are a few of the benefits of the gain weight shakes:

1. They build your percentage of lean muscle.
2. They increase muscle mass.
3. Help you recover quicker after a workout.
4. Help you maintain a healthy and fit body.
5. Increases the body levels of gluthathione-a powerful anti-oxidant that is essential for maintaining a healthy immune system.
6. Help to prevent bone loss.
Thomas Sinfield