ネイティブが教える英会話のジェムスクール☆Teachers☆

So, in regards to trying to be a bit healthier, I am trying to change my diet. I know for most people, when you hear the word "diet", your first thought means "lose weight". That is not the exact definition. Rather, it is a selection or limitation of a particular kind of food or amount of food that a person eats. This means that a person can have a "poor diet", eating things like candy and cookies every day, while avoiding vegetables and other nutritious foods. Or a person can change their diet, such as eating more meat or beans to increase their protein intake. As for me, well, I tend to just grab something at a convenience store, which while healthier than something you might find in an American convenience store, still isn't all that healthy. Plus, there is a serious lack of fresh vegetables, and I don't eat enough of them as it is. So now I am (trying) to go shopping more, trying to pick up mostly veggies, while (trying) to avoid unhealthy snacks like cookies (I can't stay away) and chips.
This is mostly to try to be healthier. I also kinda want to lose the belly that I have. Though not big by American standards (I would be considered thin, probably), it is quite big by Japanese standards. That is not to say I am doing it because other people tell me that it is big. I personally think that it needs to be smaller. I am not trying for a 6 pack or anything; I'm not that into body building. But to be able to wear a shirt without my belly stretching it out would be nice. I'm not dedicated enough; I need to work harder!