Nutri Buddy AI-Your-Powered Nutrition and Diet Companion

Abstract

Diet-related disorders such as obesity, type-2 diabetes,
anaemia and micronutrient deficiencies continue to
surge worldwide, yet the majority of existing “onesize-
fits-all” diet applications overlook crucial
variables—local cuisine, medical lab results, budget
constraints, and cultural or religious food practices.
Nutri-Buddy fills this gap by functioning as an AIpowered,
evidence-based nutrition companion that
synthesises nine domains of user data—vital statistics,
anthropometrics, medical history, laboratory reports
(via on-device Vision-OCR), dietary intake and
preferences, lifestyle factors, behavioural readiness,
personal goals, and food-access context. Leveraging
large-language-model reasoning, vector-based
retrieval, and cost-aware recipe optimisation, the app
generates (i) a timestamped 24-hour meal plan
tailored to the user’s country and budget, (ii) a
rotating three-week menu with grocery lists in local
currency, and (iii) an interactive chat coach for realtime
queries. Dynamic guardrails automatically flag
allergens, contraindicated foods, or budget overruns,
while a progress dashboard visualises BMI trends,
streak badges, and updated lab markers. By unifying
personalised meal planning, report scanning, and
behavioural coaching into a single mobile platform,
Nutri-Buddy aims to democratise clinical-grade
nutrition guidance for users ranging from rural lowincome
communities to urban professionals, ultimately
contributing to a healthier, more informed society.