Every food choice, weighed against the evidence.
Longevity Edition
30 seconds for 3 years of life.
19,000 values, 1,000 foods from 3 national food databases (IFCT 2017, USDA SR28, CoFID 2019).
Pick 2 foods, then switch the goal. The verdict comes straight from official nutrition data, with the source shown.
Official food composition data from India, the United States and the United Kingdom, checked line by line.
Number of foods, by source database and by region.
Data source: IFCT 2017 (ICMR-NIN), USDA SR28, CoFID 2019.
Everyday staples and ingredients from South Asia, Europe and the rest of the world. No branded products. Every value is per 100 g.
Result of the independent check, by number of foods.
Method: independent re-read of every original source file.
A separate program re-opened each source file and compared all 19 nutrients for every food. Every flag was investigated, and 12 errors in the sources themselves were corrected and noted.
Points added and taken away, out of 100.
Method: Alternative Healthy Eating Index (Tessier et al., Nature Medicine, 2025).
The longevity score follows the eating pattern most linked to healthy ageing in a 30-year study of more than 105,000 people. The same food always gets the same score.
Values are for 100 g of the food, mostly raw or as sold. Cooking changes them.
India's IFCT often reports about 2 times the fibre of USDA and CoFID for the same food, such as guava or garlic, because of method and which parts are measured.
The source never measured it. We did not fill it in; scores count it as 0 and it is marked.
For example, the digital IFCT copy lists oils and ghee at 0 kcal. Energy was calculated from fat at 9 kcal per g, and every fix is noted.
Some results may still look inconsistent. We are working through the more complex factors behind healthy ageing, and which biomarkers and nutrients matter most, so the scoring model will keep improving.
Tuned to your age, gender and health: high blood pressure, type 2 diabetes, PCOS, high cholesterol, fatty liver and weight.
Including popular processed foods and products from fast food chains.