I might sound very rude, but your essay is quite... confusing. Befuddling.
First, I would like to commend you for your introduction. You gave a small sentence explaining what and how the problem is affecting us, expressed that there are several problems within the problem we have, and then stated you will discuss and explain counter measures for it.
This is a neat introduction, but my confusion arose in second body...
You stated the in the intro and 1st body, the problems are 1) eating unhealthy diet ---> because people do not have the time to eat/prepare nutritious meals. and 2) malady(?) <malady is a noun... it's not an adjective.> lifestyle/ people not exercising... (you didn't state the reason why people aren't exercising or snacking badly...) and that was good. However, on the 2nd body, the paragraph you are supposed to present the counter measures, you barely stated logical or even plausible measures.
Another way which people should do is consuming the healthy diet. They can choose organic meal to maintain health and they have to reduce or even avoid fast food in their daily lives.
You say this, but you said on the 1st body that they didn't have enough time to eat such nutritious meals in the first place. There was nothing about what you declared as the problem being a problem and your countermeasure was simply, 'just eat healthy food'. There were little reasoning behind your countermeasures which is why I was very confused and unsatisfied reading this essay.
I strongly suggest you plan out your essay with logic and coherency.
Hope this helps.