D, L-Phenylalanine 750 mg
by Metabolic Maintenance · capsule · 60 capsules
- On the market (NIH)
- UPC 8 38287 00114 0
- DSLD label 274026
- Serving 1 capsule
- 60 servings
D, L-Phenylalanine 750 mg by Metabolic Maintenance lists 2 ingredients, 2 with an amount per serving of 1 capsule, such as 15 mg of vitamin B6 and 750 mg of DL-phenylalanine. Its current label entered the NIH Dietary Supplement Label Database on September 22, 2022.
What is in D, L-Phenylalanine 750 mg?
Each row as the label prints it, per serving of 1 capsule. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| Vitamin B6as Pyridoxine HydrochlorideVitamin B-6 (Form: as Pyridoxine HCl) | 15 mg | 882% | Higher than 68% of 15,277 products listing vitamin B6 (median 6 mg). |
| DL-Phenylalanine | 750 mg | Higher than 89% of 155 products listing DL-phenylalanine (median 300 mg). |
Source: NIH ODS Dietary Supplement Label Database, label 274026 (entered September 22, 2022), version 9.4.0. See the label on DSLD or its label image (PDF). Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.
Is that a lot?
Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient.
The NIH database records one serving a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.
The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.
Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.
Which products have the closest formulas?
2 products list the very same ingredients; the nearest amounts come first.
- D,L-Phenylalanine 750 mgMetabolic Maintenance same ingredients
- DLPA Caps 1000 mgCountry Life same ingredients
- DLPA 500 mgVitamin World 1 shared, 76% alike
- DL-Phenylalanine 500 mgGood 'N Natural · off the market 1 shared, 76% alike
- DL-PhenylalanineThorne Research · off the market 1 shared, 76% alike
- D,L-Phenylalanine 500 mgMartin Avenue Pharmacy 1 shared, 76% alike
Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.
What does the label say about taking it?
Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.
- Directions
- Directions: One (1) capsule daily, or as directed by a healthcare professional. Best taken between meals.
- Warnings
- Caution: Phenylketonurics contains phenylalanine. Do not take with MAO inhibitors or tricyclic antidepressants.
- Hypertensives, pregnant or lactating women, consult your healthcare professional before taking this product.
- Keep tightly closed in a cool, dry place, out of the reach of children.
- Allergens and what it does not contain
- Egg free Gluten free Free of nuts Dairy free
Source: label statements in DSLD label 274026.
What else is on the label?
Other ingredients: Cellulose, L-Leucine.
How many labels does D, L-Phenylalanine 750 mg have?
One label is on file, entered on September 22, 2022.
- Label 274026 (current) Entered September 22, 2022 · on the market · 60 capsules · UPC 8 38287 00114 0
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Metabolic Maintenance (manufacturer), Sisters, Oregon. All Metabolic Maintenance products.