Yes, yogurt is a good choice for a low carb diet. However, you might need to eat a large amount of yogurt in order to keep your body in shape without being too hungry.
It's not bad, but know that carbs ARE good for you. They are a major source of energy for the body. However, to excess carbs not used as fuel can be broken down into long term storage as fat.
No, bananas are not good for a low carb diet. Banana is relatively high in carbohydrate. For the carbohydrate content of banana, see the page link, further down this page, listed under Related...
Yes, corn is a good addition to your diet but be careful to eat sparingly. If you want to lose some weight, you should eat moderately. Make sure that you are having a healthy and balanced diet. This...