Portions are important when it comes to matters of health and weight management. But it's hard to control our portions when measuring cups, spoons, and scales aren't readily available. Since guesswork can sometimes be dangerous, we need some sort of guide when estimating our serving sizes.

Try this on for size -- Well & Fit magazine, published by the Publix grocery chain, offers these tips for estimating serving sizes at a glance.

1 cup = a small fist
1 ounce of cheese = an index finger
1/2 cup of rice or oatmeal = a light bulb
3-ounce serving of fish or meat = a deck of cards
1 serving of fruit = a tennis ball

OK, now I've got a few visuals. How about you?