Energy Drink Powder Supplement Information

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Also known as Vitamin B3, Niacin is an essential human nutrient that is also found in eggs, meats, leafy greens, avocados, peanut butter, and many other foods. Niacin plays a role in metabolizing fats, carbs, and proteins.
Vitamin B6 is found naturally in meats, whole-grain products, vegetables, nuts, and bananas. The body needs vitamin B6 for more than 100 enzyme reactions involved in metabolism. Vitamin B6 is also involved in brain development during pregnancy and infancy as well as immune function.1
Vitamin B9, also called folate or folic acid, is one of the B vitamins that help the body convert food (carbohydrates) into fuel (glucose), which is used to produce energy. 2 Folate is found in common dietary sources such as vegetables (particularly dark green leafy vegetables), fruits and fruit juices, nuts, beans, peas, and dairy products.
Vitamin B12 is an essential nutrient that helps keep the body's nerve and blood cells healthy and helps make DNA, the genetic material in all cells.3
Common salt; the daily recommended value is less than 2400mg in a 2000 calorie diet.4
Taurine is an amino acid, one of the building blocks of proteins. Found in the nervous system and muscles, taurine is one of the most abundant amino acids in the body. It is thought to help regulate heartbeat, maintain cell membranes, and affect the release of neurotransmitters in the brain.5
As an amino acid found in food, taurine is thought to be quite safe. There is strong evidence that taurine is safe at levels up to 3 g per day, and higher dosages have been tested without apparent adverse effects.6
Glucuronolactone is produced by the metabolization of glucose in the liver and occurs naturally in the body. It is an important structural component of nearly all connective tissues.7 The European Food Safety Authority has determined that exposure to glucuronolactone from regular consumption of energy products is not a safety concern.8 We sell glucuronolactone as a separate supplement here.
Malic Acid is used to add bitterness and may be used for masking undesirable flavors. It is found naturally in fruits and is synthesized by the body during the process of metabolizing carbohydrates.
Mettle Energy products contain 200mg of Caffeine per serving. Caffeine is commonly used to increase the metabolic rate and alertness. For healthy adults FDA has cited 400 milligrams a day as an amount not generally associated with dangerous, negative effects.9
L-phenylalanine is found in most foods; it is the natural form found in proteins of the essential amino acid, Phenylalanine. Researchers think Phenylalanine increases the production of brain chemicals and some clinical studies suggest that it may be helpful for the treatment of depression.10
N-Acetyl L-Tyrosine is a common supplemental form of Tyrosine. Some studies suggest that tyrosine supplements may help improve memory and performance under psychological stress and may increase alertness.11


The supplement facts presented on this page are representative of the basic energy mix present in Mettle Energy drink and shot products.  Products will contain additional sweeteners, colors, and flavors.  Please consult the individual product pages for their complete information.

While we strive for accuracy in this information, we make no warranties or representations as to the accuracy, correctness, reliability with respect to such information, and assume no liability or responsibility for any omissions or errors (including, without limitation, typographical errors and technical errors) in the information contained on this page.  Please see the Terms of Use for our complete information policy.

No statement on this page has been evaluated by the Food and Drug Administration.  Mettle Energy products are not intended to diagnose, treat, cure or prevent any disease.