Sports Store Supplement
Protein
Bodybuilders often take a powdered form of protein, the essential building blocks for muscle. Protein powder is generally consumed immediately before and after exercising, or in place of a meal. The theory behind this supplementation is that having a sufficient protein intake allows for efficient growth and repair of muscle tissue.
- Whey protein is the most commonly used type of protein. It is absorbed by the body very quickly and easily. It contains high levels of all the essential amino acids, branched-chain amino acids and has the highest content of the amino acid cysteine which is important for the biosynthesis of glutathione; which has extremely important immune boosting properties for the body.
- Casein protein (or Milk protein) is the richest in glutamine, an amino acid that aids in recovery, and has casomorphin which helps the body to absorb the amino acids over a long time.
- Soy protein contains all essential amino acids, and is an alternative protein for vegans. Soybeans also contain isoflavones, a type of phytoestrogen, which have a weak estrogenic activity.
- Egg white protein is a lactose- and dairy-free protein.
- Hemp seed contains complete and highly-digestible protein and hemp oil is high in essential fatty acids.
Branched chain amino acids
Amino acids are the building blocks of protein; the body breaks consumed protein into amino acids in the stomach and intestines. There are three branched chain amino acids (BCAAs): leucine, isoleucine, and valine. Each has numerous benefits on various biological processes in the body. Unlike other amino acids, BCAAs are metabolised in the muscle and have an anabolic/anti-catabolic effect on it.
Glutamine
Glutamine is the most abundant amino acid found in human muscle and is supplemented because supplement manufacturers claim the body's natural glutamine levels are depleted during anaerobic exercise. It is argued that bodybuilders should supplement with glutamine, as deficiency may lead to a weakened immune system and wasting of muscle tissue. It is sold as a micronized, instantly soluble powder. Some studies have shown there to be no significant effect of glutamine on bench press strength, knee-extension torque or lean muscle mass when compared to controls taking a placebo, though another study found that glutamine is beneficial in raising T-helper/suppressor cell ratio in long distance runners.
Essential Fatty Acids
Essential fatty acids are necessary nutrients especially while bodybuilding. Bodybuilders often go on such a low fat diet that they become fat deficient. Fatty fish include salmon, trout, or mackerel; fish oils can also be taken in supplement form. Fish fats cannot readily be made in the body, but are needed by organs, especially the brain.
Polyunsaturated vegetable oils, such as corn, sunflower, and safflower oils, cannot provide linoleic acid. Soybean oil is the only supermarket oil that contains linolenic acid. Flaxseed oil is an ideal source of α-Linolenic acid, which can also be found in walnuts and pumpkin seeds.
Obtained from coconut oil, medium chain triglycerides (MCTs) have an unjustified reputation in the world of bodybuilding. It is commonly believed that MCTs cannot be deposited into fat cells, but research has shown this to be incorrect. Although MCTs are rapidly available to the bloodstream, they don't give an athlete more strength, size speed, or endurance.
These are the most benign of fats in that they don't affect your cholesterol or prostaglandins (regulators of hormone action) like some of the polyunsaturated fats. Monounsaturated fats are found in olive oil and macadamia nuts.
Various supplements in health food stores contain essential fatty acids derived from fish oils and other sources. .
Meal Replacement Products
Meal Replacement Products (MRPs) are either pre-packaged powdered drink mixes or edible bars. Both are consumed in the place of a whole-food meal. Generally MRPs are high in protein, low in fat, have a low to moderate amount of carbohydrates, and contain a wide array of vitamins and minerals.
The majority of MRPs use whey protein, calcium caseinate or micellar casein, soy protein, and egg albumin as the protein source. Carbohydrates are typically derived from maltodextrin, oat fiber, brown rice, or wheat flour. Some also contain flax oil powder as a source of essential fatty acids.
MRPs can also contain other ingredients that are deemed beneficial to bodybuilders. These can include, but are not limited to: creatine monohydrate, glutamine peptides, L-glutamine, calcium alpha-ketoglutarate, additional amino acids, lactoferrin, conjugated linoleic acid, and medium chain triglycerides.
Prohormones
Main article: ProhormoneProhormones are precursors to hormones and were most typically sold to bodybuilders as a precursor to the natural hormone testosterone. This conversion requires naturally occurring enzymes in the body. Side effects are not uncommon, as prohormones can also convert further into DHT and estrogen. To deal with this, many supplements also have aromatase inhibitors and DHT blockers such as chrysin and 4-androstene-3,6,17-trione. To date most prohormone products have not been thoroughly studied, and the health effects of prolonged use are unknown. Although initially available over the counter, in 2004 their purchase was made illegal without a prescription in the US, as it remains so in almost all countries and is proscribed by most sporting bodies.
Creatine
Main article: Creatine supplementsCreatine is an organic acid naturally occurring in the body that supplies energy to muscle cells for short bursts of energy (such as lifting weights) via creatine phosphate replenishment of ATP. A number of scientific studies have shown that creatine can increase strength, energy, muscle mass, and reduce recovery time. In addition, recent studies have also shown that creatine improves brain function and reduces mental fatigue. Unlike steroids or other performance-enhancing drugs, creatine can be found naturally in many common foods such as herring, tuna, salmon, and beef, making it difficult to ban it from sporting competitions.
It increases what is known as cell volumization by drawing water into muscle cells, making them larger. This intracellular retention should not be confused with the common myth that creatine causes bloating (or intercellular water retention). Creatine is sold in a variety of forms, including creatine monohydrate, and creatine ethyl ester, amongst others. Though all types of creatine are sold for the same purposes, there are subtle differences between them, such as price, and necessary dosage. Non-supplemental suppliers of creatine include various types of offal, red meat, and kidney meat.
In response to claims that creatine can be stressful to the kidneys (due to primary renal elimination via creatinine), creatine proponents cite studies by universities and independent organizations showing no adverse effects.
Thermogenic products
Main article: ThermogenicsA thermogenic is a broad term for any supplement that the manufacturer claims will cause thermogenesis, resulting in an increased metabolic rate, increased body temperature and consequently an increased rate in the burning of body fat. Until recently almost every product found in this supplement category comprised the "ECA stack": ephedrine, caffeine and aspirin. However, on February 6, 2004 the Food and Drug Administration (FDA) banned the sale of ephedra and its alkaloid, ephedrine, for use in weight loss formulas. Several manufacturers replaced the ephedra component of the "ECA" stack with bitter orange or citrus aurantium (containing synephrine) instead of the ephedrine. To date the effectiveness of this new combination is not conclusive.
Testosterone boosters
There are several naturally occurring plants and vitamins as well as synthetic chemicals that supplement companies claim may produce an increase in testosterone levels. However, the validity of many of these products is questionable due to a lack of valid scientific research showing their effectiveness, and even scientific evidence showing a lack of effectiveness. Some commonly taken supplements of this type are ZMA and Tribulus terrestris.
The relatively new drug 4-androstene-3,6,17-trione may increase the testosterone-estrogen ratio.
Excess testosterone can cause undesirable side effects, such as hair loss and acne, and may be converted into estrogens, which can have undesirable effects on males, such as gynecomastia and testicular atrophy.
See also
- Dietary supplement
- Fish oil
References
- ^ Soy is Still Bad Protein by Glen Neilson, T-Nation.com Retrieved on 2009-04-08.
- ^ Soy: What's the Big Deal? by Dr. John Berardi and Ryan Andrews Retrieved on 2009-04-08.
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Karlsson HK, Nilsson PA, Nilsson J, Chibalin AV, Zierath JR, Blomstrand E (2004). "Branched-chain amino acids increase p70S6k phosphorylation in human skeletal muscle after resistance exercise".
Am. J. Physiol. Endocrinol. Metab.
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(1): E1–7. doi
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