Phenylalanine RDI
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The RDI for phenylalanine is as follows:
- Infants: 41mg per kg of body weight
- Children: 22mg per kg of body weight
- Adults: 16mg per kg of body weight
Tolerable upper limit
There is no tolerable upper limit for phenylalanine.
Therapeutic dosage
There is a supplementary dosage range that is a safe therapeutic dose of phenylalanine:
- Adults: 150-600mg per day
There is a recommended daily intak (RDI), but no tolerable upper limit for phenylalanine
The higher levels of phenylalanine 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