Eiyoo - A Human-in-the-Loop Nutrition Advisory Platform
A full-stack platform that connects users with real nutrition advisors — log meals, get evaluated, and receive 1-on-1 coaching through a dedicated advisory system.
Posted by Van Huy
Core Problem
Most people who want to improve their diet face the same failure pattern:
- They don't consistently track what they eat
- They have no one to hold them accountable
- Apps give generic feedback with no human judgment
Even existing meal tracking apps only:
- Log calories
- Show charts
- Send push notifications
But they never answer:
> "Am I actually eating well — and is a real expert reviewing this?"
That gap is the problem Eiyoo solves.
Solution
Eiyoo is a two-sided nutrition coaching platform built around a simple loop: users log meals → advisors evaluate them → coaches give personalized feedback.
It has four parts:
User App (`eiyoo-user`)
The member-facing interface. Users log every meal (breakfast, lunch, dinner) with photos. They choose a personal advisor based on their goal — fun meal management, strict dieting, calorie control, or beginner-friendly coaching. Premium members (via Stripe subscription) get matched to a dedicated advisor, receive daily evaluations, and exchange 1-on-1 coaching messages.
Advisor App (`eiyoo-advisor`)
The coach-facing workspace. Advisors browse each client's meal history through a calendar view, assign a 1–5 daily rating to their eating records, and communicate through an integrated messaging interface. All feedback is dated, structured, and tied to specific meal data — not scattered chat.
Admin Panel (`eiyoo-admin`)
The internal back-office. Operators manage user accounts and the advisor roster from a secure, login-only dashboard. No public signup — entirely decoupled from the user-facing apps.
Backend API (`eiyoo-backend`)
The private REST API powering all three frontends. Handles JWT auth with tiered user roles, meal record storage with photo uploads, advisor matching by specialty, Stripe subscription lifecycle, daily evaluations, and real-time unread message tracking.
This transforms nutrition coaching from:
❌ generic apps with no human feedback
to
✅ a structured, advisor-driven coaching experience where every meal is seen and evaluated by a real person
Build log (0)
No updates yet.
Idea appraisal
An automated appraisal by builtonideas.com — guidance only.
Appraisal for: Eiyoo - A Human-in-the-Loop Nutrition Advisory Platform · by Van Huy
Appraiser: builtonideas.com · Jun 18, 2026
Appraisal score
Eiyoo addresses a clear gap in the nutrition app market by integrating human expert feedback, which is a significant improvement over generic calorie trackers. While the core concept of human-in-the-loop coaching isn't entirely new, the structured platform approach offers a strong value proposition for users seeking personalized accountability. The success hinges on efficient advisor management and user acquisition in a competitive health tech space.