Learn the unexpected signs of not eating enough from registered dietitians and an eating disorder nutrition expert.

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Whether its intentional or not, under-eating has serious consequences for our health.

Furthermore, there are psychological symptoms that are just as noteworthy.

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If you have been chronically under-eating, this may not be obvious to you though.

What goes in, should come out, she says.

A sign of a healthy body and gut ishaving at least one bowel movement each day.

An image of four wine glasses on a wooden surface

Bowel movements should happen with ease, not strain, Liptak adds.

Up your calories slightly, along withdietary fiberand hydration, and see how much this makes a difference.

Our bodies and brains are wired to keep us alive, says Young.

Young woman mixing ice coffee

If you are thinking about food all of the time, chances are high you are not eating enough.

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4.

Struggling with mood changes

If youve ever felt hangry, you could imagine the impact of longer term restriction.

Cropped shot of young woman shopping in the dairy section of a supermarket. She is reading the nutrition label on a container of fresh organic healthy natural yoghurt

Even when its unintentional, under-eating has a large impact on our mental health.

Thus, repeating the restrict-then-overeat cycle the next day.

Our monthly cycle can be a signal of being properly fueled.

Two cups with coffee and green tea on a beige background.

Under-fueling and missed periods can be especially tricky in athletes who have steep calorie needs.

With increased amounts of exercise, fueling properly becomes even more important.

Gaining your cycle back consistently is a wonderful sign that you are starting to eat enough.

red pigment in a wooden spoon

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