When it comes to living a long and healthy life, there are two main ingredients that should be incorporated; diet and fitness. These two ingredients should be used together, to have the best results possible. Most health conscious people will tell you that in their diet they only eat healthful foods leaving out the bad foods such as fat, carbs and sugars, but they will will also tell you that they have a healthful fitness or exercise routine as well. More likely than not, any person you talk to will have both key ingredients in their lives. It's practically impossible to eat junk and exercise but be healthy and lose weight, just as it's practically impossible to eat healthy foods and not exercise but be healthy and lose weight.
These two attributes should go hand in hand if you ever expect to be fully healthy! To a large degree we are what we eat. If we consume a high fat low content diet our bodies are going to miss the fuel required to burn the fat. At the same time, if we aren't providing our bodies the instruments it needs to build muscle it doesn't matter how many weights we lift.
Use your exercise routine to burn excess calories and use your diet to properly intake the nutrients it needs to burn fuel and create muscle. A pound of muscle requires less space than a pound of fat, personally I would rather be composed of muscle than fat, wouldn't you?!? Diets alone does not build muscle and that is something you will do well to think of in your efforts! You should also be aware that as you are building muscle you should be shedding inches.
This is usually really frustrating among people because they think they are losing weight but when they get on the scale it still says the same thing! But I bet if you got out your tape measurement you would surely see you are losing "weight" just not in the way you think you should be. Look in the mirror, try on your tight pants, and measure your waistline. Measure your success by how you feel after climbing a flight of stairs not by how many pounds fell of the scale this week!
You really should look at diet and fitness as a pen and paper type of relationship. Sure you can write without the paper but it seems to work much better if you have both! When diet and fitness are compounded they can create amazing results for people that take this seriously! The thing to remember is that neither diet nor fitness works as well alone as they do together, and neither will work if you don't want it to. This has to be one of your priorities in life, not just something you do on a whim, once in awhile when you are feeling "not so good" about yourself. This should be in at least your top five priorities in life if you really want a change!