What was the purpose of morgan spurlock's in doing this experiment, super size me?

I believe it was to prove that eating Mc Donalds and junk food every day can be very bad for your body. Eating the junk that he ate gave him major heath issues. High blood pressure, he gained a lot of weight, and he was feeling sick all the time. Those were just a few of the horrible things that he experienced. In the beginning of the movie Mr. spurlock  expressed specifically why he did the experiment. Later on in the film Spurlock was asked on several occasions why he was putting himself at risk and he answered them by stating that he wanted to prove that fried fatty foods from mcDonalds was bad and can harm you when you eat too it too much.

1.)dr. natterson- horowitz came to realize that their isn't much of a difference between animals and humans. just like humans, animals can suffer from illnesses and diseases like breast cancer, self injury, anxiety, and many more. she also discovered how they even treated and performed surgical procedures on animals just as if the animal it self were human. the los angeles zoo called dr. natterson- horowitz because they knew that she was a doctor and that  she would be able to recognize what was wrong with the gorilla. they knew that humans and gorillas were similar, so instead of calling another veterinarian, they called a doctor.