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Information is based on public data such as DSLD and PubChem. Always check the product label before purchasing.
Amino Acids
Products with this ingredient (on market):
Across the listed products that contain L-Tryptophan, we counted whether the amount is disclosed, how much is used, in which dosage forms and brands, and what it is combined with. This shows how the ingredient is used in a way a single label cannot.
| Amount disclosed | 281 | The label states a quantity |
|---|---|---|
| Amount not disclosed | 121 (30%) | Typically a component of a proprietary blend, where the manufacturer does not publish the amount |
| Measure | Amount | Meaning |
|---|---|---|
| Minimum | 0 mg | Lowest label value in the database |
| 25th percentile | 70 mg | A quarter of products are at or below this |
| Median | 133 mg | The middle value |
|---|
| 75th percentile | 500 mg | A quarter of products are at or above this |
|---|
| Maximum | 1,500 mg | Highest label value in the database |
|---|
| Unit | Products | Share |
|---|---|---|
| mg | 264 | 94% |
| g | 16 | 6% |
| mcg | 1 | 0% |
| Form | Products | Share |
|---|---|---|
| Powder | 216 | 54% |
| Capsule | 109 | 27% |
| Tablet | 43 | 11% |
| Liquid | 26 | 7% |
| Other (e.g. tea bag) | 3 | 1% |
| Softgel | 3 |
| Brand | Products | Share |
|---|---|---|
| Muscle Feast | 11 | 3% |
| Axe & Sledge Supplements | 9 | 2% |
| Nutrex Research Basix Series | 8 | 2% |
| NutraBio | 8 | 2% |
| Natural Factors |
| Ingredients | Products | Share |
|---|---|---|
| L-Valine | 182 | 46% |
| L-Leucine | 178 | 45% |
| L-Isoleucine | 178 | 45% |
| L-Threonine | 174 | 44% |
These figures are mechanical summaries of label values from on-market products in our database. Serving definitions (number of capsules and so on) vary by product, and the figures are not intake guidance or recommendations. Check each product page and label for actual amounts.
L-Tryptophan 1,000 mg
Source Naturals
| 1% |
| 8 |
| 2% |
| PS ProSupps | 7 | 2% |
| MN Morphogen Nutrition | 7 | 2% |
| Vital Performance | 6 | 1% |
| Animal | 6 | 1% |
| BulkSupplements.com | 6 | 1% |
| 171 |
| 43% |
| L-Methionine | 165 | 41% |
| L-Phenylalanine | 163 | 41% |
| Calcium | 159 | 40% |
| Magnesium | 157 | 39% |
| Sodium | 151 | 38% |
| Total Carbohydrates | 151 | 38% |
| L-Histidine | 144 | 36% |
| Potassium | 142 | 36% |
| Vitamin B6 | 138 | 35% |
| L-Lysine | 116 | 29% |