| id | Phytocompound | Taste |
| limonin | bitter | |
| linalool | pungent (spicy); sweet; floral; woody; green; apple; pear; oily; waxy; citrus; non-pungent; | |
| linamarin | bitter | |
| linoleic acid | bitter, pungent, astringent, fatty | |
| linoleic acid ethyl ester | bitter; pungent (scratchy) | |
| liquiritigenin | bitter | |
| L-isoleucine | bitter | |
| L-leucine | bitter | |
| L-lysine | bitter; | |
| L-malic acid | sour; astringent | |
| L-methionine | bitter; sweet (insufficient evidence) | |
| lobeline | bitter | |
| loganic acid | Bitter (contradictory evidence): bitter, non bitter; salty | |
| loganin | bitter | |
| loliolide | bitter | |
| lotaustralin | bitter | |
| lotoside A | bitter | |
| L-phenylalanine | bitter | |
| L-proline | sweet, bitter, salty (insufficient evidence), sour (insufficient evidence) | |
| L-serine | sweet; sour; umami; |
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