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Catalyst

L-tyrosineFinding

L-tyrosine increases blood tyrosine concentration

raisesVery limited evidenceFindingreplicated ×2

01 · The sentence it was drawn from

“The blood tyrosine concentrations were significantly higher in the participants receiving tyrosine supplements than those in the placebo group, mean difference 23.46 (95% confidence interval 12.87 to 34.05).”
Quoted verbatim from Tyrosine supplementation for phenylketonuria.
This finding among the 4 findings on its endpoint

L-tyrosine

Blood tyrosine concentration

raises

Effect as reported

23.46mean difference

CI 12.87 to 34.05

Who
People with phenylketonuria receiving tyrosine supplementation alongside or instead of a phenylalanine-restricted diet, versus placebo; pooled randomised or quasi-randomised trials
Dose studied
not reported

Very limited evidencePMID 20687067 · 2010

02 · The study

Study
meta-analysis
Duration
not reported

Evidence, by strength

  • strong
  • moderate
  • limited
  • very limitedthis finding
  • insufficient

03 · The paper

The Cochrane database of systematic reviews
What else it reported1 finding · 1 compound · 1 endpoint

04 · To cite this finding

This address does not change

https://catalystproject.ai/e/01M6ZVSEYRSJMVPKFYNR8ZJMNZ