The weight gainers are pre-packaged, high nutrient density powdered drink mixes, that are consumed in the place and/or beside of a whole-food meal. Most weight gain powders contain a mixture of carbohydrates, protein, vitamins and minerals, amino acids and other ingredients that are thought to improve bodyweight and performance.

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Generally weight gain powders are high in carbohydrate, low in fat, have a low to moderate amount of proteins, and contain a wide array of vitamins and minerals. Those products can also contain other ingredients that are deemed beneficial to bodybuilders. These can include, but are not limited to: creatine, glutamin, arginine, taurin or other additional amino acids, essential fatty acids, conjugated linoleic acid, medium chain triglicerides, enzymes. These weight lifting supplements contain huge amounts of the basic food nutrients. If you're under weight, and having trouble gaining muscular weight, these high calorie supplements may be what's needed to pack on those extra pounds. A word of caution, these weight lifting supplements are loaded with calories, over a thousand per serving in some cases so don't over do it. It's very important to monitor your weight lifting diet and caloric intake in order to make sure you don't add too much body fat as opposed to muscle.

Remember that each meal must be balanced according to your desired nutritional goals and weight gain powders are no exception.
The majority of weight gainers use whey protein, casein or caseinate, egg albumin or soy protein as the protein source. Carbohydrates are typically derived from maltodextrin, oat fiber, oat fiber, brown rice, corn starch (waxy maize) or in the inferior products we can find some form of sugars like dextrose or fructose. 

To gain weight and build muscle fast, you must incorporatea solid approach to ALL FOUR of all these factors. These factors work off of each other, each one making the others stronger. This synergy is the key to muscle building.

The "Big Four" Factors

• First, you must adopt a weight gain diet that increases your caloric intake and provides your body with the nutrients that will allow it to grow. If the body does not have the raw materials it needs to build muscle - the protein, carbs and fat - no amount of weight training is going to make you grow.
• Second, while bodybuilding supplements won't be the cause of your weight gain plan's success, they can add to your ability to successfully provide your body with what it needs. Certain supplements like creatine, glutamine, ZMA etc. can contribute to even bigger gains.
• Third, you must weight train with schedules, methods and routines that are conducive to mass gains. There are a lot of components involved in the design of weight training routines that produce big muscle growth, from the weight lifting exercises you choose to the weight training tempo you lift with, and making sure your weight training programs are strong in each area will maximize your muscle gains.
• Fourth, you must monitor your progress and track the methods used. A good tracking program will enable you to see the results your weight gain plan is producing and show you exactly how and what got you to those results. From this information you will be able to make the necessary adjustments that will help you continue to gain weight fast until your goals are met.

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