People who have low levels of vitamin D may need supplements.

Also, many people may need supplements because they do not get enough exposure to sunlight.

Consult your doctor to see if you need iron or other supplements.

Some people who do not get enough calcium and vitamin D may need supplements.

Healthy individuals who eat a balanced diet rarely need supplements.

They concluded that most Americans do not need supplements because fruits and vegetables provide enough nutrition.

Over an extended period we would need dietary supplements.

I know they do say if you eat a balanced diet you shouldn't need supplements.

He added that Olympic-level athletes need supplements because they cannot get enough nutrients from food.

If you need supplements to your diet, well, McDonald's is on every street corner these days.