Almost all of us have to go grocery shopping at one point or another, but the cost of our bill largely depends on what products we choose to buy. Try to pay more attention of the items that you put in your cart and just how much each of these items actually costs. More money is spent on junk and processed foods than is spent on healthier, fresh foods.
The last thing you want to do is fill up your freezer with a bunch of frozen dinners and fish sticks. Even if it has a restaurant's name on it, it's probably not as healthy for you as what you would get at their establishment. Avoid name brand freezer items or other restaurant chains, since they tend to be expensive.
Try to buy foods that are healthy for you, but don't go overboard, since items classified as health foods are more expensive than regular items you would buy. Both ends of the spectrum are expensive, whether you're buying for health concerns or for convenience. Try to find a good middle of the road with as many products as you can.
One of the best things that you can do is learn how to cook with fresh ingredients. Buying all of those frozen dinners and then being able to nuke them in the microwave may be convenient, but it's neither cheap nor is it healthy.
Cheaper is not always better. Meats that come from animals that are treated with hormones and other things are not healthy for you. The meats that haven't been treated with these things may be a little more expensive, but your health will benefit in the long run. Better health means a stronger immune system and less trips to the doctor.
Purchasing organic produce is also expensive, but if you have a bit of land, you can grow many things in your garden on your own that will be just as good for you as the organic products you can buy in the store.
One of the worst things you can do for your health and pocketbook is eat fast food. Fast food is loaded with calories that you definitely don't need and in some cases, a price you can't afford. Unless you're on a road trip and it's more economical (and practical) to eat out than buy what you need to make what you want, try to avoid fast food.
There are three things that you can add to your meals that will make them stretch farther: rice, noodles, and potatoes. These three items are fairly cheap and almost everyone likes at least one of them. Load up your meals with them and save money at the same time.