This is a submission for the Gemma 4 Challenge: Build with Gemma 4 *Most apps still treat “healthy” like it’s a universal setting. High protein? Great. Low fat? Great. Organic? Great. * Except… that’s not how real bodies work. The real‑world problem In the real world, “healthy” is completely different person to person. A product that’s perfect for one friend can quietly wreck another. Think about these everyday situations: Your gym friend swears by a “clean” protein bar, but it destroys your...