AI Meal Planning and Nutrition Management App 'Oishii Kenko' Announces Survey Results That Led to Development of 'Food Expense Estimation AI' Featured on NHK

Oishii Kenko Inc. (CEO: Tetsuya Nojiri), which operates the AI meal planning and nutrition management app 'Oishii Kenko' with the concept of 'AI for Families,' has announced the results of its 'Food Price Surge Survey,' which independently analyzed fluctuations in food prices and the prices of recipes supervised by its registered dietitians. This survey, which analyzed the 10 years from 2016 onwards, revealed the reality of rising food prices as well as the existence of foods with stable prices. The 'Food Expense Estimation AI' was also featured on NHK's 'Shuto-ken Joho Netadori!' broadcast on June 5, 2026.

Key Survey Findings

Food prices have generally increased compared to 2016. Cabbage, for example, recorded an index exceeding 300 (more than 3 times that of 2016), indicating particularly large price fluctuations for vegetables, seaweed, and legumes.

The average price index for recipes supervised by Oishii Kenko's registered dietitians has also risen. Main dishes and staples reached an index of 138, and side dishes reached 134 (January 2016 = 100).

Price increases vary by recipe. It was found that by choosing recipes with stable prices, it is possible to create meal plans that control food expenses even amidst rising prices.

Background of the Survey

Amidst continuing price increases, many users expressed concerns such as 'It's difficult to plan meals because ingredients are getting more expensive' and 'I'm trying to save money while considering nutrition, but I'm reaching my limit.' In response, the company conducted its own analysis of ingredient prices and found that recipe selection significantly impacts food expenses and that some ingredients maintain stable prices. Based on this knowledge, the 'Food Expense Estimation AI' feature, which displays estimated food expenses for recipes and meal plans, was released in January 2026.

Survey Overview

Survey Name: Food Price Surge Survey

Analysis Target (External Data): Ministry of Internal Affairs and Communications, Retail Price Survey (Trend Data) Tokyo Metropolitan Area (January 2016 - December 2025)

Analysis Target (Recipes): 1,264 Oishii Kenko registered dietitian-supervised recipes for which price calculations were possible throughout the entire period (January 2016 - December 2025).

Analysis Method: Smoothing using a 3-month moving average, time-series clustering (classified into 4 groups).

Analysis Conducted by: Oishii Kenko Inc. (Independent Analysis).

Main Survey Results

Overall Food Prices Have Risen

Analysis of food prices in Tokyo's wards revealed an upward trend across all categories compared to 2016. Vegetables, seaweed, and legumes showed particularly large price fluctuations, with cabbage recording a price index exceeding 300 (more than triple that of 2016) in early 2025. Conversely, chicken and eggs showed relatively stable price trends.

Oishii Kenko's Recipe Prices Have Also Increased

Price indices reflecting the price fluctuations of ingredients were calculated for 1,264 Oishii Kenko dietitian-supervised recipes. By 2025, the price index for main dishes and staples reached 138, and for side dishes, it reached 134 (January 2016 = 100), confirming an overall increase in the food cost burden for households.

Meal Planning for Expense Reduction: 'Savings x Nutrition' Proposals

Analysis of price fluctuation patterns classified recipes into four clusters: 'Expensive When Out of Season,' 'Continuous Price Increases,' 'Slow Price Increases,' and 'Affordable Keepers.' By actively proposing recipes from the 'Affordable Keepers' cluster with low price index increases, or recipes that become cheaper in season, the company aims to support households in maintaining nutritional balance while saving money. This insight became the starting point for the development of Oishii Kenko's 'Food Expense Estimation AI.'

Examples of Oishii Kenko's Stable-Priced Recipes:

- Whole Shiitake Mushroom Steak: Approx. 120 yen (Price Index ±0%)

https://oishi-kenko.com/recipes/19837

- Easy Oven-Baked Okonomiyaki-Style Atsuage: Approx. 130 yen (Price Index +6%)

https://oishi-kenko.com/recipes/19321

- Japanese-Style Tandoori Chicken: Approx. 170 yen (Price Index +8%)

https://oishi-kenko.com/recipes/9109

*Price index based on January 2016 = 100. Food expense estimates are per person as of June 8, 2026.

'Food Expense Estimation AI' Featured on NHK

Oishii Kenko's 'Food Expense Estimation AI' displays the estimated cost of ingredients per person for recipes and meal plans. As 'AI for Families,' it has been featured on NHK programs. The program highlighted it as an example of food tech addressing rising prices, in response to family voices seeking to maintain nutritional balance while saving money.

Featured Programs:

- NHK 'Netadori!': Aired June 5, 2026

- NHK 'Ohayo Shuto-ken': Aired May 27, 2026

- NHK 'Shuto-ken Network': Aired April 22, 2026

Image of the Food Expense Estimation AI screen.

Future Outlook

Under its service concept of 'Enabling everyone to eat deliciously forever,' Oishii Kenko will continue to enhance its personalized meal support functions. With the expectation of prolonged price increases, the company believes that meal management support, which incorporates considerations for food expenses and household budgets in addition to medical and nutritional perspectives, is what patients and consumers will increasingly need. By continuing to address changes in living environments, Oishii Kenko aims to realize a society where everyone can solve their food-related issues—whether for disease prevention, treatment, pregnancy, childbirth, or elder care—and enjoy healthy eating deliciously and joyfully.

Overview of the AI Meal Planning and Nutrition Management App 'Oishii Kenko'

The AI meal planning and nutrition management app 'Oishii Kenko' is a personalized meal management service where AI proposes optimal meal plans and recipes tailored to a user's health status, conditions, and dietary preferences. It supports easy implementation of preventative diets, weight management, and condition-specific meal management at home, based on the Ministry of Health, Labour and Welfare's 'Dietary Reference Intakes for Japanese,' various clinical guidelines, and physician's dietary instructions.

App Name:

'Oishii Kenko'

Supported Devices:

iPhone (iOS) / Android

App Introduction Page:

https://corp.oishi-kenko.com/products

App Store:

https://oishi-kenko.com/katgut/ios_app_store

Google Play:

https://oishi-kenko.com/katgut/android-kenko_google-play

WEB:

https://oishi-kenko.com

About Oishii Kenko Inc.

Oishii Kenko Inc. is a healthcare startup operating an AI meal planning and nutrition management service used by 2 million people monthly. With the concept of 'AI for Families,' the company supports family dining tables by providing personalized meal plans based on individual health status, preferences, and budgets, utilizing over 10,000 recipes supervised by registered dietitians. Their services cover dietary management for over 80 conditions, including diabetes and hypertension, as well as food expense management. They offer the app 'Oishii Kenko' and the life guidance SaaS 'Kakaris' for medical institutions, aiming to realize a society where 'everyone can eat healthily and deliciously forever.'

Inquiries Regarding This Release:

Oishii Kenko Inc. Public Relations

E-mail: press@oishi-kenko.com Keywords: