Obesity is partially a product of our modern environment. Food is plentiful, as well as sedentary jobs. There is also a surplus of sugary, fatty foods that can be consumed while on the go. In most cases, eating fast food is actually cheaper than eating healthy food. There are also some genetic and medical factors that can predispose people to carry more weight.
While we can't change genetic or medical factors, we can respond to the issue of poor nutrition, and here, the private sector has some options in trying to curb obesity. People can open restaurants which provide low-cost healthy food options. Employers can also give workers breaks for exercise and discounted gym memberships in order to provide incentives to live healthier lifestyles. Popular cooking shows can also help the healthy food movement by demonstrating new ways to cook healthy foods or ways to use less oils and sugars in food.
The public sector can also get involved in the push to curb obesity. The government can put heavier taxes on sugary drinks or offer tax breaks at the grocery store for people who buy fruits, vegetables, and whole grains. Government can also provide grants for farmers' markets, which would encourage people to eat healthier. Governments can also run a series of public service announcements that show the effects of obesity on the heart, kidneys, and joints.
There is no quick solution to combating obesity, as it has become one of the leading causes of disease in the Western world. These possible solutions could limit the problem, but it would be nearly impossible to stop obesity altogether without giving up one's freedom of choice at the grocery store and restaurant.