While you may have the best intentions at heart when it comes to adding healthy foods to your diet, you may not be aware that you might be eating some superfoods incorrectly. For example, yogurt is generally considered healthy, but only if it contains live cultures and isn’t loaded with sugar and other additives. Or, perhaps you’ve added plenty of vegetables to your diet, but aren’t benefitting from the nutrients they offer as a result of boiling or overcooking them.

If you’ve recently overhauled your diet to include healthy foods, but still aren’t losing as much weight as you want, it’s possible you could be eating certain foods incorrectly. Here are tips on how to eat five types of healthy foods without sacrificing their nutritional values.

1. Peanut butter

The ingredients label on your peanut butter jar should read: peanuts (and maybe salt, if you enjoy salty peanut butter). Steer clear of peanut butter brands loaded with sugar, hydrogenated oils, corn syrup, and other unnecessary ingredients. Real, natural peanut butter is loaded with healthy fats, protein, potassium, magnesium, and other vitamins and minerals that can help accelerate weight loss.

2. Broccoli

Broccoli is packed with vitamins and antioxidants that offer a number of health benefits, and can even help reduce your risk for cancer. While raw broccoli carries the highest benefits, most people can’t stand the taste of raw broccoli. Instead of boiling or microwaving broccoli, either lightly steam or sauté the vegetable to help it retain its high nutritional value.

3. Sweet potatoes

Many individuals tend to turn sweet potatoes into sweet potato fries, or boil them to make mashed sweet potatoes with brown sugar and butter. Both preparation methods result in a higher amount of fat and calories, and could deplete the vegetables of their nutrients. Instead of frying or boiling sweet potatoes, steam them in diced chunks, or bake them for the best nutritional value.

4. Beans

Beans are loaded with protein and fiber, and are considered an ideal after-workout food. But most individuals purchase canned beans, which are prone to being high in sodium and contain additives, including the chemical BPA. Instead of buying canned beans, buy raw, whole beans, then soak and boil them on your own. A bag of beans goes a long way, and can feed your entire family for days.

5. Apples

Many individuals tend to peel the skin off an apple before serving, which considerably lowers the apple’s nutritional value. Apple peels are rich in potassium, folate, iron, vitamin A, and vitamin C. If you’re reluctant to eat apple peels due to not being sure if they were treated with pesticides, go organic so you can benefit from these important vitamins and nutrients.