L-Theanine 100 mg
by Metabolic Maintenance · capsule · 60 capsules
- On the market (NIH)
- UPC 8 38287 00146 1
- DSLD label 274068
- Serving 1 capsule
- 60 servings
L-Theanine 100 mg by Metabolic Maintenance lists 2 ingredients, 2 with an amount per serving of 1 capsule, such as 100 mg of L-theanine suntheanine and 300 mg of glycine. Its current label entered the NIH Dietary Supplement Label Database on July 21, 2022.
What is in L-Theanine 100 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 |
|---|---|---|---|
| L-Theanine Suntheanine | 100 mg | 47% of 1,602 products listing theanine give more (median 100 mg). | |
| Glycine | 300 mg | 49% of 1,078 products listing glycine give more (median 300 mg). |
Source: NIH ODS Dietary Supplement Label Database, label 274068 (entered July 21, 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?
The products whose ingredient lists overlap most with L-Theanine 100 mg's, rare ingredients counting for more.
- Mag TheanineOrthoplex · off the market 2 shared, 80% alike
- Pure Tranquility LiquidPure Encapsulations 2 shared, 64% alike
- Sleep Solution Natural Raspberry-Lemonade FlavorPure Encapsulations · off the market 2 shared, 57% alike
- Sleep Solution (Single Dose Liquid)Pure Encapsulations 2 shared, 57% alike
- GlycineProtocol For Life Balance 1 shared, 51% alike
- GlycineThorne Research · off the market 1 shared, 51% 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: Pregnant or lactating women, consult your healthcare professional before taking this product.
- Keep tightly closed in a cool, dry place, out of 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 274068.
What else is on the label?
Other ingredients: Vegetarian Cellulose Capsule.
How many labels does L-Theanine 100 mg have?
One label is on file, entered on July 21, 2022.
- Label 274068 (current) Entered July 21, 2022 · on the market · 60 capsules · UPC 8 38287 00146 1
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.