The rise of obesity across the Western world is undeniable and is a lifestyle issue rather than being caused by a single food group. A study found that the increasing amount of food consumed outside the home, especially from restaurants and takeaways which account for 41% of food expenditures, is a concern. Portion sizes at restaurants have become ridiculously large, exceeding USDA standards by 480%, and calories per person have increased by 493 per day since the 1960s. To counteract weight gain, people need to be more active, prepare more food at home where they control portions, and exercise restraint when eating out.