GLUTAMINE SELECT™ Frequently Asked Questions (FAQ)


Glutamine Select™ is a powdered drink mix consisting of the amino acids glutamine, leucine, isoleucine and valine. The latter three comprise the branched-chain amino acids (BCAA).

The development of Glutamine Select™ rests on solid scientific grounds. By partnering glutamine with BCAA in quantities clinically-proven to be effective in bodybuilding athletes, its tremendous anabolic energy can finally be uncapped, enabling users to achieve levels of muscle protein, glycogen, mass, strength and hardness not possible by relying on the diet alone. This uniquely energizing effect is something you can only fully appreciate by trying Glutamine Select™ for yourself. Once you do, you will see why it is referred to as the “red bull” of bodybuilding amino acid formulas.

Each ingredient in Glutamine Select™ has been tested and reviewed for safety and purity. Finally, Beverly’s R&D scientists left no stone unturned in making GLUTAMINE SELECT™ the very best tasting formula of its kind by using a proprietary cherry flavoring system.

Can anyone use Glutamine Select?

Glutamine Select™ is intended for use as a dietary supplement by resistance exercising men and women 18 years of age and older who wish to improve the appearance and performance of their body.

What makes new GLUTAMINE SELECT™ different from other glutamine-containing supplements?
a. Clinically-proven quantities: Large quantities of glutamine and BCAA are required to produce the effects sought by bodybuilding athletes, such as increases in muscle mass, hardness and overall performance, and faster recovery from training. Whereas some glutamine supplements contain only glutamine, each serving of Glutamine Select™ supplies 5 grams of glutamine plus 3 grams BCAA. These are the exact same quantities of glutamine and BCAA shown to improve the muscle-building effects of whey in resistance trained athletes (Colker, 2000). Whey is frequently regarded as the most anabolic protein in the world. Subjects in the Colker study who received the whey fortified with glutamine and BCAA gained approximately two pounds more of muscle and doubled their strength as compared to those receiving regular whey only.
b. Pharmacologically-active form: The glutamine and BCAA in Glutamine Select™ are free, i.e., not bound to proteins. In this form they can produce pharmacological actions not possible through the consumption of food.
Though glutamine is abundant in many protein supplements, typically it is protein-bound glutamine, which cannot raise plasma glutamine levels as quickly as can free glutamine. A study published in the International Journal of Sports Medicine (van Hall et al. 2000) found that a drink containing free glutamine doubled plasma glutamine levels in trained subjects, whereas plasma glutamine levels were not affected by the consumption of either a wheat protein hydrolysate (providing 26% glutamine) or a whey protein hydrolysate (providing 6.6% glutamine). Wheat protein hydrolysate is sometimes added to protein powders and other supplements to increase their glutamine content.

c. Refreshingly delicious taste:
Beverly’s R&D scientists used a proprietary cherry flavor system to make Glutamine Select™ taste as delicious as it is anabolically energizing.

d. Tested and reviewed for safety and purity: Like the rest of Beverly’s formulas, all of the ingredients in Glutamine Select™ have been tested and reviewed for safety and purity. The glutamine and BCAA, in particular, meet United States Pharmacopeia (USP) standards.

e. Less than $1 per serving:Glutamine Select™ costs less than $1 per serving. Compare this to the potential gains in muscle protein, glycogen, mass, strength and hardness. They are priceless.

f. Anabolic energy that never “crashes”: Glutamine Select™ gives users real and lasting increases in anabolic energy levels that, unlike stimulant-containing products, do not come crashing down. This can be explained in a number of ways:

i. Glutamine is known as an anaplerotic substrate for its ability to replenish the supply of intermediates in the Krebs (tricarboxylic acid) cycle. The Krebs cycle is involved in the re-synthesis of ATP. ATP is as real as energy gets. Without ATP, muscle contraction stops, as does anabolism and life itself.

ii. Glutamine is a glucogenic amino acid, meaning that it can be converted into glucose. Glucose is the body’s most important fuel. Glutamine is considered by some scientists to be the body’s most important glucogenic amino acid.

iii. The BCAA are also an important source of energy. They supply ATP for the liver and muscle tissue. Supplementation with BCAA helps maintain BCAA levels and vice versa.

iv.Glutamine and BCAA have independently been found to stimulate muscle glycogen synthesis. Per gram ingested, glutamine has actually been shown to replenish muscle glycogen levels more efficiently than carbohydrate.

When can I expect to see results while using Glutamine Select™

Some of the benefits provided by glutamine and BCAA supplementation can occur within minutes of supplementation, whereas others may be noticeable after a few days or weeks.

For instance, Bruce et al. (2001) gave subjects 0.125g of glutamine/kg bodyweight one hour before exercise. Plasma glutamine levels increased within 60 minutes, reaching a peak of 51%. Glutamine increased the supply of Krebs cycle intermediates in muscle tissue during exercise. The muscle content of glutamine at rest was also higher in subjects receiving glutamine.

When football players supplemented with glutamine (0.100 g/kg bodyweight) for 5 days prior to exercise, it reduced the accumulation of ammonia in the blood during exercise (Bassini-Cameron et al. 2008). Ammonia is a potentially toxic by-product of metabolism which has been blamed as a cause of fatigue.

Bowtell et al. (1999) had subjects exercise until their muscle glycogen levels were depleted. They then consumed either 8g of glutamine or a glucose polymer drink. Plasma glutamine levels began increasing immediately after consuming glutamine and peaked within 30 minutes, by 46%. During 2 hours of recovery, the glutamine-only drink was found to be just as effective as the glucose polymer at stimulating net muscle glycogen storage. Yet it raised insulin levels less.

Increases in muscle mass and strength while using Glutamine Select™, may require several days or weeks to notice, depending on the number of servings consumed each day and other factors. However, being that muscle glycogen status affects not only protein synthesis but also muscle fullness, hardness and vascularity, it is quite possible that you may notice improvements in these things within as little as 24-48 hours.


Yes. As the study by Colker (2000) demonstrated, even a protein with a high anabolic capacity like whey may be made more powerful by the addition of glutamine and BCAA in gram quantities.

6. If I don’t perform resistance exercise, can I still benefit from using Glutamine Select™?

GLUTAMINE SELECT™ is capable of providing you with benefits whether or not you currently exercise. However, you can expect far greater benefits when using it as a supplement to a calorically-appropriate diet and a regular program of exercise. Because resistance exercise is more efficient at stimulating muscle protein synthesis, you can expect greater gains in muscle mass, strength, shape, tone and definition when using Glutamine Select™ as an adjunct to this type of exercise.>

What are the benefits of supplementing my diet with Glutamine Select™ over the short and long term?

Glutamine Select™ contains ingredients that published scientific studies suggest can*:

  • Protect muscle glutamine levels
  • Reduce BCAA & protein catabolism<
  • Support glycemia (blood glucose levels)
  • Support arginine & nitric oxide (NO) levels
  • Reduce ammonia accumulation during exercise
  • Reduce exercise-induced muscle damage
  • Reduce central (CNS) and peripheral (e.g. muscle) fatigue
  • Support arginine and nitric oxide levels<
  • Stimulate protein synthesis
  • Replenish Krebs (tricarboxylic acid) cycle intermediates
  • Support ATP levels
  • Increase muscle cell volume
  • Increase muscle glycogen storage
  • Support immune system regulation
  • Support recovery from exercise
  • Reduce impact of overtraining
  • Protect against muscle atrophy
  • Increase muscle mass & strength
  • Increase energy expenditure (calorie-burning)
  • Support electrolyte levels
  • Support immune system function

7. Is Glutamine Select™ safe for people with medical conditions?

In scientific studies, glutamine, BCAA and the combination of the two have been given to healthy subjects as well as subjects suffering from a variety of medical conditions. In the Journal of Nutrition, Gleeson (2008) reports: “Acute intakes of glutamine of approximately 20-30 g seem to be without ill effect in healthy adult humans and no harm was reported in 1 study in which athletes consumed 28 g glutamine every day for 14 d. Doses of up to 0.65 g/kg body mass of glutamine (in solution or as a suspension) have been reported to be tolerated by patients...” Other scientists have echoed these comments, adding that because of the high rate of glutamine turnover (synthesis and catabolism) in the body, even large amounts (up to 30 g) may be ingested without any side effects. Nevertheless, it is advised that you discuss Glutamine Select™ with your medical doctor before using if you have a medical condition, or if you are currently unaware of your health status.

8. Is new Glutamine Select™ safe if you are trying to become pregnant, or are currently pregnant or nursing?

Discuss GLUTAMINE SELECT™ with your medical doctor before using if you are trying to become pregnant, or are currently pregnant or nursing.

9. Can Glutamine Select™ be used while preparing for a bodybuilding competition? What about a fitness or figure competition?
Yes. To prepare for competition, bodybuilders, fitness and figure athletes need to hold onto as much of their muscle mass as possible while losing fat mass (body fat). This may require consuming a diet that is low in calories, and carbohydrate, in particular. The result can be a loss of muscle glycogen, reduced protein synthesis and muscle atrophy (shrinkage). Protection from muscle atrophy is one of the potential benefits of using Glutamine Select™ while preparing for competition.

Note that many Beverly customers stack Glutamine Select™ with 7-KETO MUSCLEAN™ and LEAN OUT™ in order to increase calorie burning, enhance fat loss and prevent the retention of water under the skin.

10.  Can Glutamine Select™ help me burn calories?
Yes. As a glucogenic amino acid, glutamine stimulates gluconeogenesis. Gluconeogenesis refers to the conversion of amino acids and other non-carbohydrate substances (e.g. glycerol) into glucose. Gluconeogenesis requires ATP, which is supplied by the burning of fat calories.

When healthy subjects were administered glutamine enterally, it increased their resting energy expenditure (REE), from 1531 kcal/day to 1842 kcal/day (Hankard et al., 1996). Giving the subjects the amino acid glycine, in contrast, produced no significant change in REE. Glutamine, but not glycine, was also shown to stimulate protein synthesis.

11.  Where is Glutamine Select™ made?

GLUTAMINE SELECT™ was formulated and tested by Beverly’s R&D scientists at the Beverly International Nutrition head office in Cold Spring, Kentucky. Each ingredient has been selected based on studies published in publicly-accessible databases such as those made available by the National Center for Biotechnology Information (NCBI).

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Scientific evidence
Bassini-Cameron et al. (2008). Br J Sports Med, 42(2): 260.
Bowtell et al. (1999). J Appl Physiol, 86(6): 1770.
Colker (2000). Curr Ther Res, 61:19.
Gleeson (2008). J Nutr, 138(10): 2045S.
Hankard et al. (1995). Am J Physiol, 269: E663.
Hankard et al. (1996). Am J Physiol, 271: E748.
Loi et al. (2009). Crit Care Med, 37(2): 501.
Tischler et al. (1982). J Biol Chem, 257(4): 1613.
van Hall et al. (2000). 21(1): 25.
Wu (2009). Amino Acids, 37(1): 1.
Young and Ajami (2001). J Nutr, 131: 2449S.