Hunger signals tell us when to eat, what to eat, and when to stop. There are three types of hunger signals:

• Hunger is a sensation (stomach growling, feeling hunger pangs) that makes you want to eat. It is partly controlled by a region of your brain called the hypothalamus, your blood sugar level, how empty your stomach and intestines are, and certain hormone levels in your body.
• Fullness is also called satiety (say "suh-TY-uh-tee"). It's a feeling of satisfaction. Nerves in your stomach send signals to the brain that the stomach is filled. Increased blood sugar, the activity of the hypothalamus, and the presence of food in the intestines all lead to this feeling of fullness.
• Appetite is a desire for or an interest in food. It is linked with the sight, smell, or thought of food. Appetite can override hunger and satiety, such as when you continue to eat even after you feel full. You can also have no appetite for food even though you are hungry, which may happen in a stressful situation or during an illness.

Continue to Why?

Babies follow their hunger signals naturally. When their bodies tell them they're hungry, they let us know by crying or fussing. And they stop eating when they're full enough to be satisfied.

Distractions get in our way

As we grow up, lots of distractions lead us away from this natural way of eating:

• For most of us, food is everywhere—in grocery stores, corner markets, vending machines, and the office break room, to name just a few. It can be hard to pay attention to your hunger signals as you go about your day.
• You may skip breakfast because you'd rather sleep in. So when lunchtime rolls around, you're extra hungry and eat more than you should.
• You may watch TV, read, or use the computer while you eat. This can distract you so that you stop paying attention to what or how much you're eating or whether you're full enough to stop eating.
• You may often eat so fast that you barely even taste your food or pay attention to how full you really are.
• Stress or other emotions cause many of us to reach for food—not because we're hungry, but because food comforts us or helps us celebrate.
• Most of us are influenced by larger serving sizes. Research shows that when people are given larger portions, they eat more.

All these distractions can cause you to ignore your body's signals. You stop paying attention to how hungry you are or how full you are. Over time, you lose the skill of listening to and obeying your body's signals.

Learning to get back in touch with your hunger signals can be one of your best tools for getting to a healthy weight and staying there. Your hunger and fullness signals are still there. You just have to learn how to listen to them again.

Continue to How?

Figure out where you are now

First, find out what signals you are following. Keep a food journal for 2 weeks, or longer if you need to. Write down not only when and what you eat but also what you were doing and feeling before you started eating. Using the hunger scale below, write down where you were on the scale before you ate and where you were afterwards.

When you look back at your food journal, you may see some eating patterns. For example, you may find that you almost always eat dinner in front of the TV. You may find that you always eat an evening snack, even when you're not hungry. You may find that you often snack when you "feel" like you want to eat (because of boredom, stress, or some other emotion), but you're not truly hungry.

Use a hunger scale

A hunger scale can help you learn how to tell the difference between true, physical hunger and hunger that's really just in your head. Psychological hunger is a desire to eat that is caused by emotions, like stress, boredom, sadness, or happiness.

When you feel hungry even though you recently ate, check to see if what you're feeling is really a craving brought on by something psychological.

When you start feeling like you want something to eat, rate your hunger on a scale of 1 to 10, with 1 being starving and 10 being so full you feel sick. A rating of 5 or 6 means you're comfortable—neither too hungry nor too full.

1—Starving, weak, dizzy

2—Very hungry, cranky, low energy, lots of stomach growling

3—Pretty hungry, stomach is growling a little

4—Starting to feel a little hungry

5—Satisfied, neither hungry nor full

6—A little full, pleasantly full

7—A little uncomfortable

8—Feeling stuffed

9—Very uncomfortable, stomach hurts

10—So full you feel sick

To eat naturally, the way a baby does, eat when your hunger is at 3 or 4. Don't wait until your hunger gets down to 1 or 2. Getting too hungry can lead to overeating. When you sit down to a scheduled meal, stop and think how hungry you are. If you feel less hungry than usual, make a conscious effort to eat less food than usual. Stop eating when you reach 5 or 6 on the scale.

When it's time to eat, make healthy choices

For your body to be truly satisfied, your meals need to be balanced. This means that each meal should contain:

• Carbohydrate. You get this from grains, fruits, and vegetables.
• Protein. You get this from meat, fish, eggs, milk, yogurt, cheese, dry beans, and nuts.
• Fat. You get the kinds of fat that help you stay healthy from:
  • Fish, walnuts, and flaxseeds and flaxseed oil. These have omega-3 fatty acids.
  • Olive, canola, and peanut oils; most nuts; avocados; and olives. These have monounsaturated fats.
  • Safflower, corn, sunflower, sesame, soybean, and cottonseed oils. These have polyunsaturated fats.

Your meals should contain tastes that you like and want. This also helps you feel satisfied.

Learn when to stop eating

Try to stop eating before you get too full. Too full is uncomfortable. It means you ate too much.

Get in touch with what "satisfied," or "pleasantly full," feels like for you.

• Relax before you start eating, and then eat slowly. Remember that it takes about 20 minutes for your stomach to tell your brain that you're full.
• Stop a quarter of the way through your meal, and check your hunger level. If you're still hungry, keep eating, but stop again at the halfway point. No matter what your parents taught you, you don't have to clean your plate.
• Learn what proper portions are. We're used to restaurant portions, but restaurant portions usually contain much more food than we need.

Don't deny yourself

Lots of people think that healthy eating means never having dessert or french fries or any of the things they love to eat. That's wrong.

Your appetite, which can include a desire for sweets or other less-than-healthy treats, is a strong body signal. And part of keeping your body at that "satisfied" level on the hunger scale is eating tastes that you like and want.

If we try to have an eating plan that cuts out all treats, we probably won't stay with that plan. In fact, we're more likely to go "off the wagon" and eat too much of those foods.

But it's important to recognize when it's your appetite talking instead of your true hunger. Knowing which body signal is talking can help you control what you are eating.

If you're eating healthy and listening to your body signals, a piece of birthday cake or an occasional order of french fries can fit into your healthy eating plan. When the holidays come around, it's okay to eat the traditional foods you love. Just keep listening to your body signals and eat only enough to reach that "satisfied" level.

A few more tips

• Try not to let your hunger drop to a 1 or 2 on the hunger scale. When you get that hungry, you're likely to eat faster, make poorer food choices, and keep eating past the "satisfied" point.
• On the other hand, let yourself feel some hunger between meals. Mild hunger is a good thing. After all, it's a sign that you're not overeating. Teach yourself to appreciate hunger pangs as a natural part of life, as a sign that you're a healthy eater.
• Give cravings 10 minutes. When you suddenly feel the need to eat, tell yourself that you will wait 10 minutes. If it was only a craving, you will have forgotten about it by then, and the urge will be gone. If 10 minutes goes by and you still have the urge to eat, you may be starting to get hungry.
• Don't eat more now because you think you might not have time to eat later. Eat what your body needs now, and worry about later, later.
• Some people find that it's easier to schedule lots of small meals throughout the day. Other people do better with "three square meals." Whichever you choose, try to eat on a regular schedule every day, according to how hungry you usually get. Eating regular meals can help you be more aware of hunger and fullness.
• Does leaving food on your plate drive you nuts? Take smaller servings. Save leftovers for another meal. Share plates with someone. Ask yourself what's more important—a few bites of "wasted" food, or your health?
• When you eat, make your food the main attraction. Sit down at the table with your family. Don't eat in front of the TV. Don't read while you eat. Give your attention to what you are putting in your mouth, how it tastes, and how your body reacts to what and how much you're eating.

Continue to Where?

Now that you have read this information, you're ready to start listening to your body's hunger signals.

Talk with your doctor

If you have questions about this information, print it out and take it with you when you visit your doctor. You may want to mark areas or make notes in the margins where you have questions.

If your goal is to get to a healthy weight, your doctor can refer you to a dietitian, an expert who can help people learn to eat healthy.

If you would like more information on healthy eating, the following organizations can provide information:

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