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Lafai
Beyond Prompt Engineering: Is your food right for you?
1 follower
Beyond Prompt Engineering: Is your food right for you?
1 follower
📷 Scan or upload any food (label, plate, drinks, any) and pick a built-in prompt such as General Ingredient, Youth & Student, Unlabelled Food or Additive Deep Dive. In seconds, get a detailed AI analysis: what's in it, whether it's good or bad for you specifically and why, and what to pair it with for a balanced meal. ✏️Create any custom prompts like vegan check, weight control, baby food, gym focus, 👤 tailored to your lifestyle, 🔒 with zero personal data, all powered by Google Gemini.
Hey Product Hunt! 👋
I'm Adrian, the maker of Lafai, and I want to tell you why I built this.
After 30 years in software engineering and as an amateur runner, I am passionate about nutrition. I'm convinced that, as Linus Pauling once said, "Optimum nutrition is the medicine of tomorrow". I always thought I knew what I ate and how to avoid unhealthy products. Until one day, when I scanned a "perfectly fine" boxed meal and asked AI (Gemini) if it was healthy. It was not. I continued scanning and that's how I discovered that many products I'd been buying didn't match my lifestyle at all.
Through testing different AI prompts and lifestyle profiles, I noticed something amazing: the AI didn't just tell me a food had too much sodium, it taught me what excess sodium, sugar, or refined flour actually means for my health. The label told me the what. AI told me the so what!
But working with AI, I knew that getting these tailored answers required carefully crafted prompts, and typing them manually every time was too tedious. So I built Lafai, packing expert built-in prompts into a seamless camera app that requires zero typing. When friends and family started using it and having the exact same surprise, I realised this needed to be a real product. [Read the full origin story on our website.]
One funny thing: my student son complained that the 'General Ingredient Check' was too strict for him, like any young people wanting a relaxed lifestyle. That's how the 'Youth & Student Realistic Check' prompt was born. 😄
🎁 For the PH community: Download the app and you get plenty of free credits to try it immediately; no account, no credit card, just scan. 🎯 Prompt Challenge: Create and try a custom prompt (or improve a built-in one) and share it here in the comments! If you share a prompt that would be valuable for others, I'll reward you with extra free AI credits, and we might even include it as a built-in prompt in a future update!
Post your comments below, I'll answer quickly. 🙌
Powered by Google Gemini. Available on iOS and Android.
Lafai provides analysis for informational purposes and is not a substitute for professional medical or dietary advice.