About Nutrition Solver

Why we built this

Most nutrition sites are front ends for ad networks. They load megabytes of tracking scripts, gate calculators behind email walls, and bury the actual data under popups and affiliate links. The information you came for is treated as bait.

Nutrition Solver is the opposite. The site is generated at build time as static HTML. Every page loads fast, every calculator runs in your browser, and no third party script ever touches your data. The restaurant database covers 100 chains and 16,000 menu items, the foods reference covers common whole foods, and the calculator library includes BMI, BMR, TDEE, macro, calorie deficit, ideal weight, body fat, water intake, and protein tools.

What we are not

• Not a tracker. We do not run analytics cookies, fingerprint scripts, or third party trackers. The only client side state we use is localStorage for the meal builder, which stays on your device.
• Not a SaaS. No backend, no database, no signup. The site works the same whether you visit once or daily.
• Not medical advice. Everything here is reference data and educational content. For individualized guidance, consult a registered dietitian or your physician.

Where the data comes from

Restaurant nutrition data is sourced from public disclosures published by each chain. Whole food data comes from USDA FoodData Central reference tables. Calculator formulas use standard clinical equations (Mifflin-St Jeor for BMR, U.S. Navy for body fat, Devine and Robinson for ideal weight). Where multiple formulas exist, we show them side by side.

All data is approximate. Restaurant portions vary by location and preparation. Whole food values vary by variety and ripeness. Use the numbers as a guide, not a guarantee.

Who writes the content

Educational content on calculator pages and the blog is written and reviewed by Dr. Sarah Jenkins, a clinical dietitian with a PhD in nutritional science and over a decade of clinical experience in metabolic health. Dr. Jenkins reviews each calculator formula and educational section before publication.

How the site is built

Nutrition Solver is built with Astro, a static site generator that pre-renders every page at build time. Styling uses Tailwind CSS v4 with a custom design system. Search is powered by Pagefind, which builds a static search index at deploy time and runs entirely in the browser. The site deploys as a flat folder of HTML, CSS, and JavaScript files that any static host can serve.

Get in touch

Found a bug, want to suggest a restaurant or calculator, or have a question about the data! Email hello@nutritionsolver.com and we will get back to you.