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MannXtra®

MannXtra® is a Medical Food designed for patients’ dietary management with Congenital Disorders of Glycosylation (CDG), such as Phosphoglucomutase 1b (PGM 1b) Deficiency. This product is a 100% pure, concentrated source of mannose in a soluble, enteral powder. You can learn more by reading the FAQs outlined on this page.


How much MannXtra® powder should I take each day?

Daily intake should be determined by your healthcare professional specializing in mitochondrial or metabolic disorders. Dosing is based on age, body weight and the metabolic condition of the patient.

What type of Mannose is used in MannXtra®?

MannXtra® contains 100% concentrated D-Mannose powder.

How much MannXtra® is in one bottle?

Each bottle contains 300 grams of powder.

Is there a scoop in the bottle?

Yes, each bottle contains a scoop that delivers 4.5 grams of D-Mannose.

Does MannXtra® contain allergens?

It is allergen tested at No Detectable Limit (NDL) for egg, dairy, fish, crustacean, corn, gluten, soy, tree nuts, and peanut. It’s also GMO-free.

How should I consume MannXtra®?

Using the scoop, measure the recommended amount of MannXtra®. Consume directly by mouth or add to juices, beverages or sprinkle on top of or mix with food. It also may be added to tube feeding formulas.

How does MannXtra® taste?

It is sweet tasting.

Can MannXtra® be tube fed?

Yes, the powder is soluble and will readily suspend in formulas when adequately mixed.

How should MannXtra® be stored?

Unopened bottles should be kept in a cool, dry place. Reseal opened bottles, store in a cool location and use within 3 months

What are the ingredients in MannXtra®?

It contains only Mannose powder.

Is MannXtra® nutritionally complete?

No, it contains only Mannose. It is not a source of vitamins and minerals or proper balance of macronutrients. MannXtra® should not be used as a sole source of nutrition.

Does MannXtra® contain calories?

Yes, MannXtra® contains carbohydrates. Each gram of powder contains 4 kcal from 1 g of carbohydrate.

Does MannXtra® contain other additives?

No, it is free from additives, preservatives, flavorings, & GMOs.