It may be animal products (meat, milk) or vegetable (canola, soybean, nuts). It will depend on what the person eats, and what foods are popular in that area.
Saturated Fat is the main contributors to peoples diets obtained from Animal sources.
meat
fat
carbohdartes and fiber
The internet is littered with fat loss ads, articles, diets, and suggestions, but it is important to check your sources. Not all diets and suggestions are healthy for you, and could be bad advice. However, there are many websites with great information and helpful diets and hints to lose fat! Here is an example of such a website article: http://www.bodybuilding.com/fun/how-calorie-deficit-equals-fat-loss.htm
Carbohydrate,fat
Low fat diets are often high in carbohydrates, since things like pasta, bread, and grains are low in fat. Fruits and vegetables are also a key component of low fat diets.
You can find out about protein diets from many sources. WebMD has many great articles on high protein diets. Bacon is not really a very great source of protein as it contains a lot of fat. It is much better to find a lean source of protein such as chicken and turkey.
You can get energy from Carbohydrates, Fat and to a lesser extent protein.
There are no diets that can specifically target belly fat, however, belly fat is the first type of fat to be lost on any diet because of its metabolic properties.
Heart Healthy diets are diets that are low in fat, especially saturated fat and low in sodium. Eating fresh foods that lack preservatives is an easy way to cut excess sodium from your diet.
Some people are fat.