Eating a healthy diet is one of the best ways to prevent diabetes.  The first place to start is with lots of fruits and vegetables.  Eat a wide variety, sampling all different colors of the rainbow in order to keep things fresh and exciting.  Try to avoid starchy vegetables, focusing instead on spinach, carrots, broccoli, or green beans.

Eat whole grains instead of processed grains.  A few simple ways to incorporate whole grains into your diet is to substitute whole wheat pasta for regular spaghetti or to switch to brown rice instead of white.  

Fish is one of the healthiest food sources available.  Try to eat fish two or three times a week. When eating meat, choose lean cuts of beef and pork.  Also, always remember to remove the skin from chicken and turkey.  

If you enjoy dairy products, opt for non-fat dairy like skim milk, non-fat yogurt, and non-fat cheese.  

Water is always the best beverage.  If you need something with a bit more flavor, make sure to choose drinks without added sugars.  The same guidelines need to be followed for snack foods.  Avoid sugary treats and cut back on all high-calorie snacks.

When preparing foods, use liquid oils for cooking, not solid fats.  Olive oil is always a great choice.  The key is to avoid saturated and trans fats.

Finally, pay attention to the size of your portions.  Eating too much of even healthy foods can pack on pounds, and that's always dangerous in the fight against diabetes.