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Napkin Math

the hyper-The hyper-personalized AI food journal that helps people…

Y CombinatorSpring 2026ActiveConsumerConsumerFitnessDigital HealthFood

What they do

Problem

People need nutrition guidance that fits their unique goals, physiology, and real-life constraints beyond generic calorie-deficit tracking.

Solution

Napkin Math is a hyper-personalized AI food journaling app that analyzes eating patterns and context to tailor nutrition plans and insights to individual needs.

Who it's for

Consumers seeking personalized nutrition support for goals like athletic performance, symptom tracking, or healthier eating within their lifestyle.

Founders

Jynnie Tang
Founder

Making Napkin Math, the personalized AI food journal that helps people achieve their health goals Previously: Retool, One More Multiverse, MIT

Manuel Castro
Founder

Napkin Math is the hyper-personalized AI food journal that helps people achieve their health goals. Previously: Sonos, Healthcare Tech, Verkada

Claire Nord
Founder

Building Napkin Math, hyper-personalized AI food journal https://napkinmath.club Prev. Apple OS security, Samsara, MIT 6-3 '19

Company timeline

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