Demonstrative evidence that shows meaningfully lower disease rates and longer life expectancy in calorie restricted cohorts of accurately tracked long term huma

Demonstrative evidence that shows meaningfully lower disease rates and longer life expectancy in calorie restricted cohorts of accurately tracked long term human trials. That is basically what most people would love to see. Unfortunately, studies like this are notoriously difficult to run due to terrible self reporting. To complete an accurate study like this would likely take constant monitoring and an administered diet for the participants.