Mead Johnson Tyros 2 Phenylalanine and Tyrosine-Free Powder Medical Food

Brand/Manufacturer: MEAD JOHNSON
Item # Desc Pkg Price
891801 1lb, Powder Can $3.61
891801 1lb, Powder Can $21.66

Mead Johnson Tyros 2 Phenylalanine and Tyrosine-Free Powder Medical Food for Child and Adult is an iron-fortified medical food that is free of the essential amino acids phenylalanine and tyrosine for children and adults with tyrosinemia. It provides all other essential amino acids as well as nonessential amino acids, carbohydrate, fat, essential fatty acids, vitamins and minerals. Can be easily modified with preferred flavor enhancers.


  • Mead Johnson Tyros 2 Phenylalanine and Tyrosine-Free Powder Medical Food for Child and Adult is lactose-free and galactose-Free
  • Vitamin and mineral levels appropriate for children and adults
  • Mixes easily and stays in suspension well
  • 22gm protein equivalent 100gm powder
  • Vanilla scent
  • Nutrient Density:
    - Protein Equivalent (% Calories): 22
    - Fat (% Calories): 19
    - Carbohydrate (% Calories): 59

More Information

  • Ingredients:
    - Corn Syrup Solids, Amino Acids (L-glutamine, L-leucine, Potassium Aspartate, L-lysine Hydrochloride, L-proline, L-valine, L-isoleucine, L-alanine, L-arginine, L-threonine, L-serine, Glycine, L-histidine, L-methionine, L-tryptophan, L-cystine), Sugar, Soy Oil, Modified Corn Starch, Calcium Phosphate, Sodium Citrate, Magnesium Phosphate, Potassium Chloride, and less than 1%: Sodium Phosphate, Potassium Citrate, Choline Chloride, Ascorbic Acid, Taurine, Inositol, Ferrous Sulfate, L-carnitine, Zinc Sulfate, Niacinamide, Vitamin E Acetate, Vitamin A Palmitate, Calcium Pantothenate, Cupric Sulfate, Manganese Sulfate, Vitamin B12, Thiamin Hydrochloride, Vitamin B6 Hydrochloride, Riboflavin, Folic Acid, Vitamin D3, Chromic Chloride, Sodium Molybdate, Sodium Iodide, Sodium Selenite, Biotin, Vitamin K1, Ethyl Vanillin.
  • Product Characteristics:
    - Fat provides 19% of total calories in TYROS 2. The fat source is soy oil. Soy oil is a source of essential omega–6 and omega-3 fatty acids: linoleic acid and alpha-linolenic acid.
    - Protein equivalents provide 22% of total calories in TYROS 2. The product provides the essential amino acids (except phenylalanine and tyrosine) as well as nonessential amino acids (see Amino Acids table). Care must be taken to provide enough phenylalanine and tyrosine from other foods to support growth and tissue maintenance. The level of protein equivalents in TYROS 2 is about 30% higher than found in TYROS 1. The higher protein equivalent concentration in TYROS 2 helps persons with tyrosinemia meet their protein needs while consuming fewer calories from the product. This, in turn, allows TYROS 2 users to consume a greater variety of foods in order to meet their phenylalanine, tyrosine and calorie needs.
    - Carbohydrate provides 59% of total calories in TYROS 2. The carbohydrate blend is 59% corn syrup solids, 34% sucrose (table sugar) and 7% modified corn starch. The sucrose in the product helps mask the taste of the amino acids. TYROS 2 is lactose-free.
    Vitamins and Minerals:
    - Vitamin and mineral levels in TYROS 2 are appropriate for both children and adults.
  • Storage:
    - Store unopened cans at room temperature. After opening can, keep tightly covered, store in a dry area, and use contents within 1 month. Do not freeze powder or prepared formula. Avoid excessive heat. Use by date on bottom of can.
  • Caution:
    - It is nutritionally incomplete. Care must be taken to provide enough phenylalanine and tyrosine to support growth, using other foods with these amino acids as required. The physician must carefully and constantly supervise the use of TYROS 2 with other foods and adjust the diet based on frequent blood tests. Use by date on bottom of can. Nutritional powders are not sterile.
  • Warning:
    - Not for parenteral (I.V.) use



Per 100 grams Powder



Protein equivalent, gm


Fat, gm


Linoleic acid, mg


Linolenic acid, mg


Carbohydrate, g


Vitamins/Other Nutrients

Vitamin A, IU


Vitamin D, IU280
Vitamin E, IU9.8
Vitamin K, mcg41
Thiamin (Vitamin B1), mcg1220
Riboflavin (Vitamin B2), mcg980
Vitamin B6, mcg980
Vitamin B12, mcg2.4
Niacin, mcg22000
Folic acid (Folacin), mcg350
Pantothenic acid, mcg4900
Biotin, mcg49
Vitamin C (Ascorbic acid), mg49
Choline, mg98
Inositol, mg49
Taurine, mg49
Carnitine, mg49


Calcium, mg730
Phosphorus, mg730
Magnesium, mg163
Iron, mg12.2
Zinc, mg12.2
Manganese, mcg1300
Copper, mcg1220
Iodine, mcg63
Selenium, mcg28
Sodium, mg610
Potassium, mg1100
Chloride, mg850
Molybdenum, mcg37
Chromium, mcg37

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