One of the best pieces of advice anyone can give for finding healthy food is to shop at your local farmer's market. Since all of the food on sale is grown within a few miles of the market, you know it's fresh. Everything for sale at the market is real, unprocessed, whole food – as opposed to the bags of chips, cartons of frozen meals, and packages of ice cream at your local supermarket.
I've never seen a rack of candy bars at a farmer's market, hoping to snag you with that one last purchase of sugar while you wait in line. You will not find a hundred feet of shelf space filled with packaged cookies and snacks, next to another hundred feet filled with expensive, sugar-laden flavored water. All you get at the farmer's market is real, down-to-earth food.
You can even find sellers selling pasture-raised beef and lamb at many Saturday markets, and most markets have at least one vendor selling fresh eggs from free-range chickens – the kind of chickens that actually get to look for bugs and scratch in the grass , as opposed to the "free-range" eggs you see at the supermarket. You can talk to the person who sells the vegetables, meat and eggs, and many farmers welcome you to visit the farm to see how the food is grown.
If you do not have a farmer's market close by and you can not grow some of your own food in the back yard, the next best thing is to shop from the outer portion of your local supermarket. Almost every grocery store is set up so that most of the processed, highly-refined products take up space in the middle aisles, and the real food – eggs, fresh vegetables, milk and meat – are located around the outside. The exception is the frozen veggies in the freezer section, which are good for you, and the donuts in the outside section, which are not.
Many of the processed foods you find on a supermarket shelf have labels that actually the food is healthy, but there may be better options. Labels can be both confusing and intentionally misleading. Some terms, such as "free range" and "natural," are not regulated, so they can be used for foods that would not qualify for these terms if we really knew how the animals or veggies were raised. Other labels, such as the "heart healthy" label, may be placed on processed foods filled with sugar and high-fructose corn syrup, but they qualify for the label because they have no cholesterol or they're low in fat. Some traditionally healthy foods, like apples, are processed into delicate apple sauce, heavy on the sugar, so it is not healthy any more. To avoid almost all these foods, buy whole, natural foods instead.
Healthy foods are out there, they are not necessarily expensive, and they're easy to find if you commit yourself to looking for them.