Find the cheapest protein per gram across 3000 powders
I tracked protein powder prices in a spreadsheet for years and found that identical protein content can have wild price differences. I built PricePerProtein to automate it. It pulls real-time Amazon data (Keepa API) and uses Gemini 2.5 Flash to extract nutrition facts from product images/descriptions. Calculates actual protein per dollar, not just package price. Technical: FastAPI + Celery backend, Next.js frontend with virtual scrolling to handle 3000+ products. Deployed on a VPS (migrated from GCP - much simpler). The AI handles everything from blurry nutrition labels to understanding…
What it does
In the maker’s words, at launch
I tracked protein powder prices in a spreadsheet for years and found that identical protein content can have wild price differences. I built PricePerProtein to automate it. It pulls real-time Amazon data (Keepa API) and uses Gemini 2.5 Flash to extract nutrition facts from product images/descriptions. Calculates actual protein per dollar, not just package price. Technical: FastAPI + Celery backend, Next.js frontend with virtual scrolling to handle 3000+ products. Deployed on a VPS (migrated from GCP - much simpler). The AI handles everything from blurry nutrition labels to understanding flavor categories. No signup, no ads, no affiliate links. Updates hourly.
Does the same job
all alternatives →- AWA website for comparing protein powder prices2024 · nutritionprices.com · ▲122
diskprices.com, but for Protein Powder! Buying protein powder is a mess, and comparing different products is frustrating, since all brands choose their own serving sizes. By collecting nutrition facts, and normalizing the serving to contain 25 grams of protein, we can properly compare price/nutrients per serving. Inspired by diskprices.com, the idea is to provide an equally functional interface to compare products. The prices are collected once a day, currently from iHerb US. Aiming to improve the coverage soon. Any tips / suggestions / other feedback more than welcome :)…
precioproteinaJun 2026 · precioproteina.com · ▲6Compare protein powders by cost per gram, not by bottle
- IVI've been using AI to analyze every supplement on the marketJan 2026 · pillser.com · ▲94
Hey HN! This has been my project for a few years now. I recently brought it back to life after taking a pause to focus on my studies. My goal with this project is to separate fluff from science when shopping for supplements. I am doing this in 3 steps: 1.) I index every supplement on the market (extract each ingredient, normalize by quantity) 2.) I index every research paper on supplementation (rank every claim by effect type and effect size) 3.) I link data between supplements and research papers Earlier last year, I took pause on a project because I've ran into a few issues: Legal: Shady…
Get Transparent Pricing on LabsJul 2026 · mitohealth.com · ▲83The right tests. The real price. Nothing extra.
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