HCU Anamix Early Years FAQs

What is homocystinuria (HCU) and why does it require a special formula?

Homocystinuria (HCU) is a rare inherited metabolic disorder in which the body is unable to properly process methionine, an amino acid found in most protein-containing foods. This leads to a buildup of homocysteine and methionine in the blood, which can cause serious complications affecting the eyes, skeleton, cardiovascular system, and central nervous system if left untreated. Because standard infant formulas and most foods contain methionine, infants with HCU require a specialized formula that excludes methionine while still providing all other essential nutrients needed for healthy growth.

What is the difference between homocystinuria and hypermethioninemia?

Both conditions involve impaired methionine metabolism, but they arise from different enzyme deficiencies and can have different presentations and severities. Homocystinuria results from a deficiency of the enzyme cystathionine beta-synthase, while hypermethioninemia involves elevated methionine levels and can have several underlying causes. Both conditions require strict dietary methionine restriction, and HCU Anamix Early Years is formulated to support the dietary management of both under medical supervision.

Why does HCU Anamix Early Years contain no methionine?

Methionine is the amino acid that individuals with HCU and hypermethioninemia cannot properly metabolize. HCU Anamix Early Years excludes methionine entirely while providing a complete profile of all other essential and non-essential amino acids, carbohydrates, fats, vitamins, and minerals. Any methionine required by the infant is provided in carefully controlled amounts through natural foods as directed by the healthcare team.

What role do DHA and ARA play in this formula?

DHA (docosahexaenoic acid) and ARA (arachidonic acid) are long-chain polyunsaturated fatty acids that support normal infant brain development, eye development, and overall neurological health during the critical first year of life. HCU Anamix Early Years provides both DHA and ARA to help support healthy development in infants with HCU who depend on this formula as a primary nutrition source.

What are the prebiotic fibers GOS and FOS and why are they included?

Galacto-oligosaccharides (GOS) and fructooligosaccharides (FOS) are prebiotic fibers that help nourish beneficial bacteria in the infant gut, supporting a healthy digestive environment and contributing to immune system development. HCU Anamix Early Years includes a GOS/FOS prebiotic blend to support digestive health alongside its metabolic nutritional goals.

How is HCU Anamix Early Years prepared?

To make a standard dilution of 21 kcal per fluid ounce, add 1 unpacked level scoop (5g) of powder to each fluid ounce of cooled, boiled water using only the scoop provided. For more accuracy, use a gram scale. The formula may be mixed with warm or cool boiled water but should never be boiled or microwaved. Always prepare formula with clean hands in a clean environment using sterilized bottles and equipment. Follow the preparation schedule provided by your healthcare team.

Who should supervise the use of this formula?

HCU Anamix Early Years is a specialized medical food that must only be used under medical supervision. It should be prescribed and managed by a healthcare team experienced in metabolic disorders, typically including a metabolic physician and a registered dietitian with expertise in HCU. It is not suitable as a sole source of nutrition and is only appropriate for infants with a confirmed diagnosis of vitamin B6 non-responsive homocystinuria or hypermethioninemia. Always follow the guidance of your healthcare team regarding preparation, quantities, and feeding schedules.

Nutrition Facts

Amino Acids, g

Vitamins

Minerals

Ingredients

Corn Syrup Solids, Refined Vegetable Oils (High Oleic Sunflower, Soybean, Coconut, and Canola Oils), Galacto-Oligosaccharides (Milk), L-Lysine-L-Glutamate, L-Leucine, L-Proline, Tricalcium Phosphate, L-Arginine, L-Valine, Glycine, L-Isoleucine, Citric Acid Esters of Mono- and Diglycerides, L-Aspartic Acid, L-Threonine, L-Serine, L-Phenylalanine, L-Tyrosine, L-Alanine, L-Histidine, Potassium Chloride, Fructooligosaccharides, Tripotassium Citrate, Sodium Phosphate Dibasic, L-Cystine, Magnesium Acetate, L-Tryptophan, M. Alpina Oil*, Choline Bitartrate, C. Cohnii Oil**, L-Glutamine, Sodium Chloride, L-Ascorbic Acid, M-Inositol, L-Glutamic Acid, Taurine, Ferrous Sulfate, Zinc Sulfate, L-Carnitine, DL-Alpha Tocopheryl Acetate, Calcium D-Pantothenate, Niacinamide, Ascorbyl Palmitate, Cupric Sulfate, Thiamine Hydrochloride, Pyridoxine Hydrochloride, Riboflavin, Vitamin A Acetate, DL-Alpha Tocopherol, Mixed Tocopherols, Potassium Iodide, Manganese Sulfate, Folic Acid, Chromium Chloride, Phylloquinone, Sodium Selenite, Sodium Molybdate, D-Biotin, Vitamin D3, Cyanocobalamin.

Contains: Milk, Soybean Oil, Coconut Oil.

* A source of Arachidonic Acid (ARA)

** A source of Docosahexaenoic Acid (DHA)