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Twinlab, Amino Fuel, Lean Muscle, 16 fl oz (474 ml) (Discontinued Item)

By Twinlab

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The item is currently out of stock and replenishment is unconfirmed.

Out of Stock - Discontinued
  • Product Code: TWL-01603
  • UPC Code: 027434016032
  • Package Quantity: 16 fl oz (474 ml)
  • Dimensions: 2.5 x 2.5 x 7.7 in, 1.35 lbs (0.61 kg)

Product Overview

  • Anabolic Liquid
  • Dietary Supplement

The Science Behind The Size:

  • Product: a fast absorbing anabolic liquid amino acid that has, per serving, 15 grams (15,000 mg) of high quality branched chain, peptide-bonded, and free amino acids; stress B-complex vitamins; energizing complex carbohydrates; and pure crystalline fructose.
  • Result: protein in its most easily digested, absorbable and utilizable form to maximize muscle growth and optimize protein synthesis.
  • Science: research shows that when taken orally, peptide-bonded amino acids increase nitrogen retention better than free form amino acid mixtures for optimum muscle growth.
Suggested Use

As a quick-acting, easily digested amino acid, take three (3) tablespoons daily, or as recommended by a professional trainer. Amino Fuel may also be taken with meals, between meals, as an anabolic acid before workouts, or after physical activity. For best results, use as part of a low-fat diet and exercise program.

Other Ingredients

Water, hydrolyzed gelatin, fructose, whey protein isolate (from milk), propylene glycol, citric acid, maltodextrin, egg white hydrolysate, cellulose, inositol, choline bitartrate, orange flavor, sorbic acid, sodium benzoate (preservative), methylparaben (preservative), d-calcium pantothenate, niacinamide, l-carnitine, propylparaben (preservative), cyanocobalamin, pyridoxine hydrochloride, riboflavin 5' phosphate sodium, thiamin hydrochloride, para aminobenzoic acid, biotin, folic acid.


Do not use if pregnant or nursing. Consult a health care professional before use if you are taking any medication or have any medical condition. Not recommended for use by individuals under the age of 18 without parental permission. Keep out of reach of children.

Notice: Use this product as a food supplement only. Do not use for weight reduction.

Shake well before use.

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Supplement Facts
Serving Size: 3 Tablespoons (45 ml)
Servings Per Container: 10
  Amount Per Serving % DV
Calories 100  
Total Carbohydrate 11 g 4%**
Sugars 9 g
Protein 15 g  
Thiamin 2.5 mg 167%
Riboflavin 2.5 mg 147%
Niacin 30 mg 150%
Vitamin B6 4 mg 200%
Folate 100 mcg 25%
Vitamin B12 12 mcg 200%
Biotin 10 mcg 3%
Pantothenic Acid 30 mg 300%
Sodium 40 mg <2%**
PABA 2 mg
Choline Bitartrate 100 mg
Inositol 100 mg
L-Carnitine 25 mg
** Percent Daily Values (DV) are based on a 2,000 calorie diet.
† Daily Value (DV) not established.
Typical Amino Acid Profile Per Serving
Essential Amino Acids
Per Serving
Non-Essential Amino Acids
Per Serving
L-Leucine (BCAA) 774 mg L-Arginine 1089 mg
L-Isoleucine (BCAA) 463 mg L-Cystine 87 mg
L-Valine (BCAA) 542 mg L-Alanine 1373 mg
L-Lysine 896 mg L-Aspartic Acid 1200 mg
L-Threonine 523 mg L-Glycine 3229 mg
L-Methionine 180 mg L-Histidine 154 mg
L-Phenylalanine 396 mg L-Proline 2231 mg
L-Tryptophan 63 mg L-Serine 586 mg
  L-Tyrosine 197 mg
  L-Glutamic Acid 1971 mg
¹The L-Tryptophan in this product is naturally present in the protein. It is not added or manufactured.

iHerb Customer Reviews

5 Stars
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3 Stars
2 Stars
1 Stars

Excellent product

Posted by Reviewer3002341 on Jul 31, 2007

This is a very good product for recovery from sports or any fatigue. Your body chooses what to do with the amino acids and makes the proteins that it needs. Helps with strength and energy.

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Twinlab Amino Fuel

Posted by Reviewer3088386 on Sep 06, 2008

This is a great product and received it in perfect condition...and in just a few days. Thanks!

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RE Twinlab AminoFuel

Posted by Reviewer1449031 on Jan 27, 2009

Happy with product and service from iherb

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Great right after a workout.

Posted by Reviewer2973820 on Mar 28, 2009

Tasty orange flavor with a full spectrum of amino's. I take it right after I workout to feed my muscles and stop the shakiness that comes with lifting heavy weights.

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This is awesome stuff

Posted by Reviewer1489795 on Mar 17, 2010

Some one we suggested that we use this for our adult daughter with Chronic Fatigue Syndrome. This has helped her more than any other single item.

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