Mèng Shēn 孟詵 (c. 621–713), native of Rǔzhōu 汝州 Liángxiàn 梁縣 (modern Hénán), was a Táng-dynasty scholar-physician and disciple of the great Sūn Sīmiǎo 孫思邈. He passed the jìnshì exam under Wǔ Zétiān and served at court in the Shàngshū department, eventually rising to the post of Zhèngzhōu cìshǐ 鄭州刺史. After his retirement he devoted himself to herbal pharmacology, dietetics, and longevity techniques, dying — according to the Jiù Táng shū — in his ninety-third year.
His principal works are the Bǔ yǎng fāng 補養方 (later revised by Zhāng Dǐng 張鼎 as the Shíliáo běncǎo KR3ec008) and the Bì sì lùn 必效方 (lost). Through Mèng the Sūn Sīmiǎo dietetic tradition was transmitted into the mid-Táng and codified for later generations.
Biographies: 《舊唐書》 j.191 (方伎傳), 《新唐書》 j.196. CBDB id 189488 with conventional deathyear 749 — slightly inflated; the conventional 713 from the Jiù Táng shū is followed here. CBDB also has id 258142 (no dates) and id 104080 (without dates but with fl. 1317), which is a different person.