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Methionine

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Product Range Methionine100
Pack Size 30 x 4g ℮
Ingredients Dried glucose syrup, L-methionine.


Description
Indication

Clinical Use

Remethylation disorders1


Remethylation defects are rare inherited disorders in which a deficient activity of methionine synthase results in impaired remethylation of homocysteine to L-methionine, leading to the accumulation of homocysteine and decreased L-methionine levels.


Although remethylation disorders affect multiple systems, and thus often presents in a multifaceted manner, a few patterns of clinical presentations can be identified. These include developmental and neurocognitive impairment, feeding problems, neurological symptoms including seizures, movement disorders, abnormal muscle tone, visual impairment, neuropathy and haematological abnormalities.


L-methionine is an essential amino acid. Maintaining plasma levels in the normal range is recommended and can be achieved by oral L-methionine supplementation where necessary.


Preparation Guidelines

To be determined by the clinician or dietitian. Suggested methods include:

1. Measure out 50ml of water into a shaker.
2. Add one sachet.
3. SHAKE vigorously for 30 seconds.
4. Wait 5 minutes*, shake again and serve.
(* Waiting time will enhance dispersion of the powder and water)




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1. Pour the liquid protein substitute into a shaker.
2. Add in the SDAA.
3. Shake for 30 seconds.
4. Serve.




1. Mix the dry SDAA and protein substitute powders together.
2. Follow the protein substitute preparation instructions. You may wish to use extra water.
3. Serve.




Further Reading


1. Huemer M DD, Schwahn B, Schiff M, Bandeira A, Benoist J-F, Burlina A, Cerone R, Couce ML, Garcia-Cazorla A, la Marca G, Pasquini E, Vilarinho L, Weisfeld-Adams JD, Kožich V, Blom H, Baumgartner MR, Dionisi-Vici C. Guidelines for diagnosis and management of the cobalamin-related remethylation disorders cblC, cblD, cblE, cblF, cblG, cblJ and MTHFR deficiency. Journal of Inherited Metabolic Disease. 2017;40:21-48.


Methionine100 is a Food for Special Medical Purposes for the dietary management of inborn errors of metabolism. For use under medical supervision. For healthcare professional use only.