KERL: Knowledge-Enhanced Personalized Recipe Recommendation using Large Language Models

• URL: http://arxiv.org/abs/2505.14629v1
• Date: Tue, 20 May 2025 17:19:57 GMT
• Title: KERL: Knowledge-Enhanced Personalized Recipe Recommendation using Large Language Models
• Authors: Fnu Mohbat, Mohammed J Zaki,
• Abstract summary: Recent advances in large language models (LLMs) and the abundance of food data have resulted in studies to improve food understanding.<n>We introduce KERL, a unified system that leverages food KGs and LLMs to provide personalized food recommendations.<n>We show that our proposed KG-augmented LLM significantly outperforms existing approaches.
• Score: 17.705244174235045
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Recent advances in large language models (LLMs) and the abundance of food data have resulted in studies to improve food understanding using LLMs. Despite several recommendation systems utilizing LLMs and Knowledge Graphs (KGs), there has been limited research on integrating food related KGs with LLMs. We introduce KERL, a unified system that leverages food KGs and LLMs to provide personalized food recommendations and generates recipes with associated micro-nutritional information. Given a natural language question, KERL extracts entities, retrieves subgraphs from the KG, which are then fed into the LLM as context to select the recipes that satisfy the constraints. Next, our system generates the cooking steps and nutritional information for each recipe. To evaluate our approach, we also develop a benchmark dataset by curating recipe related questions, combined with constraints and personal preferences. Through extensive experiments, we show that our proposed KG-augmented LLM significantly outperforms existing approaches, offering a complete and coherent solution for food recommendation, recipe generation, and nutritional analysis. Our code and benchmark datasets are publicly available at https://github.com/mohbattharani/KERL.

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