About Zesst

Zesst is an AI-powered nutrition platform built for everyday high-mileage runners and hybrid athletes who want simple, clear guidance on what to eat to reach their goals — without the clunky, overcomplicated apps that dominate the diet and meal-planning space. Whether your aim is to shed stubborn fat, hold onto hard-earned muscle, sleep better, recover faster, or simply feel more energised through your training week, Zesst translates your real activity into personalised fueling targets you can actually hit.

The app calculates your daily calorie and macronutrient targets in minutes, adjusts them automatically when you log a run or training session, and shows you the gap after every meal so you always know whether you're on track. Instead of rigid meal plans or obsessive counting, Zesst focuses on the one number that drives body composition, performance, recovery, and sleep: eating the right amount for what your body is actually doing.

Zesst was built by a team of runners, coaches, and nutrition-minded athletes who lived the frustration of training hard without seeing results — and discovered that the missing piece was almost always fuel. We believe nutrition shouldn't be a barrier to progress. It should be the thing that finally makes all your training pay off, helping active people train harder, recover faster, and transform their physique without guesswork.