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Viper Extreme Bars
Boosts energyStimulantAids recoveryPer 45 grams (1 bar):
Energy: 164 calories
Protein: 3.2 grams
Carbohydrates 27.8 grams
Fat: 4.4 grams
L-Tyrosine: 1000 milligrams
Caffeine: 148 milligrams
Guarana: 50 milligramsCaffeine
Caffeine is one of the most effective performance-enhancing ingredients available. Most studies show that caffeine is a quick and easy way to boost your energy levels, gain strength and generate more intensity during your workouts [1,2]. Although many people like to have a strong cup of coffee in the hope that it will have the same effect, it's well known that coffee doesn't work as well as caffeine. While scientists don't really know why, it appears that one or more of the substances in coffee interferes with the effects of caffeine [3]. This isn't surprising, especially when you consider there are hundreds of compounds dissolved when coffee beans are roasted, ground and extracted in hot water. In fact, when one of these compounds was injected into rats, it actually slowed heart rate and lowered blood pressure, whereas caffeine has the opposite effect.
L-Tyrosine
Tyrosine is a nonessential amino acid. It acts as a "building block" for several important brain chemicals, all of which work to regulate mood [5]. Tyrosine is also involved in the synthesis of enkephalins (pronounced en-keff-a-lins), substances that have pain-relieving effects. Human and animal research shows that tyrosine helps your body adapt to and cope with the effects of physical or psychological stress (such as intense regular exercise) [4, 7]. Tyrosine can also help to offset the negative effects of sleep deprivation, and can leave you feeling more alert and energetic [6].
Guaraná
Guaraná comes from the seeds of a South American shrub, most of which originates in Brazil. The seeds of guaraná are known to be rich in caffeine, theobromine and theophylline, and have been widely used as a tonic in many South American countries. Guaraná has a powerful effect on both physical and mental performance.
Viper Extreme bars can be used by anyone who needs a quick boost in physical and mental energy. WARNING: Because of the taste of Viper Extreme bars, it's very tempting to eat more than one! Be aware that if you do, you may be awake for far longer than planned! In certain circumstances 2-3 bars may be consumed when extreme and intense effort is required. Although safe, Viper Extreme bars should not be used by anyone under the age of 18. Do not consume near (4 hours) bedtime.Viper Extreme bars are considered by most experts to be one of the most powerful stimulant bars available on the market. It's common to notice an increase in clarity of thought, mental focus and physical energy. Most nutritionists and coaches believe that Viper Extreme bars are a highly effective way to quickly gain strength, fight fatigue and boost flagging energy levels.
1. Spriet, L.L. (1995). Caffeine and performance. International Journal of Sport Nutrition, 5, S84-99
2. Doherty, M. (1998). The effects of caffeine on the maximal accumulated oxygen deficit and short-term running performance. International Journal of Sport Nutrition, 8, 95-104
3. Graham, T.E., Hibbert, E., & Sathasivam, P. (1998). Metabolic and exercise endurance effects of coffee and caffeine ingestion. Journal of Applied Physiology, 85, 883-889
4. Deijen, J.B., & Orlebeke, J.F. (1994). Effect of tyrosine on cognitive function and blood pressure under stress. Brain Research Bulletin, 33, 319-323
5. Fernstrom, J.D. (2000). Can nutrient supplements modify brain function? American Journal of Clinical Nutrition, 71, 1669S-1675S
6. Kelly, G.S. (1999). Nutritional and botanical interventions to assist with the adaptation to stress. Alternative Medicine Reviews, 4940, 249-265
7. Wagenmakers, A.J. (1999). Amino acid supplements to improve athletic performance. Current Opinions in Clinical Nutrition and Metabolic Care, 2, 539-544
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