Here are just a few food myths you may or may not know.

Can you separate the wheat from the chaff in the deluge of nutritional advice we get everyday? A lot of nutritional “facts” have been around forever. So they must be true, right? Not necessarily.

Here are some top food myths:

Fresh vegetables are more nutritious than frozen.

Actually, frozen vegetables are more likely than fresh to hang on to their vitamins by the time they reach your plate. Vegetables begin to lose their vitamins as soon as they are picked, but frozen and canned vegetables are usually processed close to the field with a quick heat treatment to halt decay. The vitamins in canned vegetables tend to leach into the liquid, so don’t drain that liquid off.

Vegetables that are destined to be processed are often allowed to get more ripe than fresh vegetables, and this increases their vitamin content as well.

Baked goods with ‘no tropical oils’ are healthier.

Baked goods without fatty tropical oils contain substitutes that are just as bad for your blood cholesterol level. A product that says “made from 100% vegetable oil” is providing false reassurance.

Chicken is a much better choice than beef or pork.

Farmers are breeding lean animals these days, and some cuts of beef are almost as low in fat as chicken. How healthy meat is depends on how you prepare and cook it.

Rinsing fruits and vegetables removes pesticides.

No such luck. You might remove some dirt, but it would take a scrubbing with soapy water to remove pesticides farmers use and the fungicides in the wax many grocery stores apply.

Shellfish is bad for your heart.

Shellfish is loaded with cholesterol, but it is extremely low in saturated fat. Saturated fat is worse for you than cholesterol.

Salty foods raise blood pressure.

Four out of every five people can eat as much salt as they want without increasing their blood pressure. Of course, it’s hard to know if you are that one person in five who is salt sensitive.

Margarine is less fatty than butter.

The truth is, a tablespoon of both margarine and butter has 100 calories. Butter does not have a lot of highly saturated fat, which probably raises your cholesterol slightly more than the “trans fatty acids” found in margarine.

Margarine does have some “good fat”. The “polyunsaturated fatty acids.” These help to balance out the bad “trans fatty acids.” Soft margarines have fewer “trans fatty acids” than the hard stick margarines.

Vitamins pills energize you.

Only carbohydrates, fats, protein and alcohol give you energy.

Sugar is bad for you.

Starchy foods and dried fruits stick to your teeth and cause them to decay more than sugar does. Fatty foods make you gain more weight than sugary foods since fat has more calories than sugar, and in spite of parents’ complaints, sugar does not make your kids hyper.

These are just a few food myths. There are many more.