7 Nutrition Myths Busted!

1. The food pyramid is for everyone. For many people, six to eleven daily servings of grains, breads and cereals is just too much. It has been known to cause bloat, fat and ill health.

Take the False Fat quiz and find out if this sort of bloat is making you bulky.

2. There is a perfect diet that will work for everyone. Some people do fabulously well on vegetarian diets, and some people crash and burn. One size only fits the people who come in that size.

Find out which diet is the best fit for you and your lifestyle with our Diet Destiny quiz.

3. All low-carb diets are like the Atkins Diet. There are many ways to get the healthful, weight reducing benefits of eating fewer carbs without going on the Atkins plan.

Looking to make sense of the low-carb craze? Here's an easy explanation of low-carb dieting.

4. Stress does not make you fat. The truth is that the stress hormone cortisol leads to carbohydrate cravings and overeating, as well as to abdominal fat.

Here are some great ways to soothe your stress without food.

5. Metabolisms are all pretty similar. Metabolisms have as great a range as cars. Some of us are Jaguars and some of us are SUVs. You need to match the right kind of gas (food) with the right kind of engine (metabolism).

Is it possible to boost your metabolism? Find out.

6. Blood type does not make a difference. Actually, blood type does play a part in weight loss. People with certain blood types are more likely to be allergic or sensitive to certain foods. Those with type O, for example, are far more likely than other types to be hypersensitive to dairy.

Find out about the blood type diet on Diets A-to-Z.

7. A balanced diet will provide you with everything you need. It's possible to have reasonable health without supplements, but it's virtually impossible to have optimal health without them.

Don't know where to start? Try the Shape Up Community Challenge® supplement list.

Got a question or comment for Jonny? Post it on the Shape Up message board!