L-Phenylalanine 500 mg
by Source Naturals · Tablet or Pill
Supplement facts from the label of L-Phenylalanine 500 mg by Source Naturals: Calcium 99 mg, L-Phenylalanine 1.0 Gram(s).
Supplement Facts
| Ingredient | Per serving | % DV | Upper limit (adults) |
|---|---|---|---|
| Calcium | 99 mg | 10% | 2,500 mg · 4% at label max |
| L-Phenylalanine | 1.0 Gram(s) | — | — |
Upper limits: NIH ODS Fact Sheets for Health Professionals. Compared only where the unit converts and the limit applies to the form on the label.
On the label
For: Vegetarian · Adult (18 - 50 Years) · Women (not pregnant or lactating) · Gluten Free · Dairy Free · Sugar Free
Claim types: Nutrient · All Other · Structure/Function
Formulation re: Other: Free form
Formula re: Contains: An essential amino acid
Formula re: Contains: L-Phenylalanine, an essential amino acid, is a precursor of the amino acid tyrosine and a whole series of neurotransmitters and hormones. Phenylalanine is first converted to tyrosine, which becomes l-dopa, which converts to norepinephrine, a key neurotransmitter and an adrenal hormone. L-Phenylalanine is also a direct precursor of PEA (phenylethylamine), another important neurotransmitter.
Suggested/Recommended/Usage/Directions: Suggested Use: 1 to 2 tablets daily.
Precautions re: All Other: Do not use if either tamper-evident seal is broken or missing.
Precautions re: Children: Keep out of the reach of children.
This page repeats what the label says and the official upper limits for healthy adults. It is not medical advice: ask a doctor, pharmacist or registered dietitian about your own intake, especially if you are pregnant, take medicines or have a health condition.
Label data: NIH Office of Dietary Supplements, Dietary Supplement Label Database (dsld.od.nih.gov), public domain. Upper limits: NIH ODS Fact Sheets for Health Professionals (values from the Institute of Medicine, Food and Nutrition Board).