Phenylalanine: study protocols
14 study groups say how much Phenylalanine participants took a day. These are the doses the studies gave. They are not a recommendation.
Dose per serving from products
844 products in our catalogue print how much Phenylalanine a serving holds.
Most common: 500 mg to 1 g, 40% of 844 products.
| Dose per serving | Products |
|---|---|
| 50 mg or less | 42 |
| 50 mg to 100 mg | 51 |
| 100 mg to 250 mg | 106 |
| 250 mg to 500 mg | 116 |
| 500 mg to 1 g | 337 |
| 1 g to 2.5 g | 172 |
| over 2.5 g | 20 |
Dose per serving from research
10 study groups in 2 studies say how much Phenylalanine participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 25 mg/kg to 50 mg/kg, 60% of 10 study groups.
| Daily dose | Study groups |
|---|---|
| 10 mg/kg or less | 1 |
| 10 mg/kg to 25 mg/kg | 3 |
| 25 mg/kg to 50 mg/kg | 6 |
Commonly used together
None of these 14 study groups took Phenylalanine with anything else.
14 study groups
| Study | |||
|---|---|---|---|
| Efficacy of sapropterin dihydrochloride in increasing phenylalanine tolerance in children with phenylketonuria: a phase III, randomized, double-blind, placebo-controlled study 2009 · sapropterin group · Children aged 4–12 years with phenylketonuria who responded to sapropterin, on a phenylalanine-restricted diet | 20.9 mg/kg | 10 weeks | — |
| Efficacy of sapropterin dihydrochloride in increasing phenylalanine tolerance in children with phenylketonuria: a phase III, randomized, double-blind, placebo-controlled study 2009 · placebo group · Children aged 4–12 years with phenylketonuria who responded during screening, on a phenylalanine-restricted diet | 2.9 mg/kg | 10 weeks | — |
| Impact of Fruit and Vegetable Protein vs. Milk Protein on Metabolic Control of Children with Phenylketonuria: A Randomized Crossover Controlled Trial 2022 · Phase B: fruit and vegetable protein, additional 50 mg/day phenylalanine · Children aged 5–12 years with phenylketonuria, receiving a phenylalanine-restricted diet | 50 mg | 4 weeks | 16 |
| Impact of Fruit and Vegetable Protein vs. Milk Protein on Metabolic Control of Children with Phenylketonuria: A Randomized Crossover Controlled Trial 2022 · Phase C: fruit and vegetable protein, additional 100 mg/day phenylalanine · Children aged 5–12 years with phenylketonuria, receiving a phenylalanine-restricted diet | 100 mg | 4 weeks | 14 |
| Impact of Fruit and Vegetable Protein vs. Milk Protein on Metabolic Control of Children with Phenylketonuria: A Randomized Crossover Controlled Trial 2022 · Phase D: milk protein, additional 50 mg/day phenylalanine · Children aged 5–12 years with phenylketonuria, receiving a phenylalanine-restricted diet | 50 mg | 4 weeks | 11 |
| Impact of Fruit and Vegetable Protein vs. Milk Protein on Metabolic Control of Children with Phenylketonuria: A Randomized Crossover Controlled Trial 2022 · Phase E: milk protein, additional 100 mg/day phenylalanine · Children aged 5–12 years with phenylketonuria, receiving a phenylalanine-restricted diet | 100 mg | 4 weeks | 6 |
| The daily phenylalanine requirement of healthy Indian adults 2006 · 19 mg . kg(-1) . d(-1) phenylalanine intake · healthy, well-nourished Indian men | 19 mg/kg | 6 days | — |
| The daily phenylalanine requirement of healthy Indian adults 2006 · 23 mg . kg(-1) . d(-1) phenylalanine intake · healthy, well-nourished Indian men | 23 mg/kg | 6 days | — |
| The daily phenylalanine requirement of healthy Indian adults 2006 · 27 mg . kg(-1) . d(-1) phenylalanine intake · healthy, well-nourished Indian men | 27 mg/kg | 6 days | — |
| The daily phenylalanine requirement of healthy Indian adults 2006 · 31 mg . kg(-1) . d(-1) phenylalanine intake · healthy, well-nourished Indian men | 31 mg/kg | 6 days | — |