This map shows which countries consume the most calories every day
They also found that residents of countries where a smaller portion of income is spent on food costs are generally served larger amounts of calories each day, usually around 3,500 calories per person. In the US, where 33.3% of men and 35.8% of women are considered obese, one out of every four food calories meant for human consumption ends up going to waste.
Residents of India, on the other hand, consume the least amount of calories - about 2,500 a day on average. Countries where food costs usually make up a larger portion of the monthly budget are less likely to have high obesity rates, the study found.
According to the study, part of the reason for the dramatic increase is that restaurant serving sizes continue to grow, and the number of people eating out continues to rise. Data compiled from independent and small-chain restaurants showed that the average serving size per meal has grown to be as much as 66% of an adult's daily recommended caloric intake.
You can find the full study, including its findings on alcohol and tobacco consumption, on Recovery Brands' website.