Methionine RDI
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The RDI for methionine is as follows:
- Infants: 49mg per kg of body weight
- Children: 32mg per kg of body weight
- Adults: 13mg per kg of body weight
Tolerable upper limit
There is no tolerable upper limit for methionine.
Therapeutic dosage
There is a supplementary dosage range that is a safe therapeutic dose of methionine:
- Adults: 200-800mg
There is a recommended daily intake (RDI) for methionine, but there is no tolerable upper limit for methionine.
The higher levels of methionine should only be taken under strict medical supervision because supplementation at very high levels may cause some side effects in some people.
References
- Osieki H. The Nutrient Bible. Everything You Need to Know About Vitamins, Minerals, Amino Acids, Enzymes - Even Toxic Metals. BioConcepts Publishing QLD. 2002