I'm Barely Eating But My Body Isn't Changing. Why? (2023)

Tells me if this sounds familiar…

You are a female athlete.

You train hard, and do so 5-6 days a week.

You want to be in your BEST shape for the upcoming season.

But your weight and body composition just aren’t changing.

One week, between training, school and work—you just don’t have much time to eat. The scale moves down a little. It feels good to see something happen. So you start eating a little less. After all, it saves time, and it looks like you’re going in the right direction.

But then the progress stops again.

During your training, you feel fatigued. You keep pushing harder, but your body composition won’t budge. You feel defeated. With your season right around the corner, you’re already stressing out.

You think to yourself…“How could I work so hard and not get results?”

The unfortunate truth is it happens ALL THE TIME—to casual gym-goers and pro athletes alike! For athletes, whose body composition is often closely related to their performance, it can be a vicious cycle.

If an athlete doesn’t see the results she is looking for right away, she might try to “DO MORE,”which often equates to:

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  • Training HARDER
  • Resting LESS
  • And REDUCING what she eats

Although it seems like these are the logical things to do when you hit a performance lull or a fat loss plateau, when you are in a chronic state of under-fueling, you are going to set yourself back even further from your goals.

The biggest mistake female athletes make is not eating enough.

So many females respond to a lack of progress by pushing harder instead of recognizing that their nutrition is not meeting their demands. If your body is in a caloric deficit for too long, it adapts. In this adapted state, your body decreases its metabolic rate as a survival tactic. It simply doesn’t know how long or how severe this calorie restriction will end up being, so it adapts by using limited resources.

Thus, you end up burning fewer calories. When it comes to fat loss, a caloric deficit is king. But when your metabolism is decreased in this manner, achieving a caloric deficit becomes extremely difficult.

If you feel like you’re killing yourself in the gym and barely eating a thing, yet you’re not seeing any changes in your body, you need to start eating more. The goal is to slowly introduce more food via a “maintenance diet” to allow your metabolism to recover. This recovery period allows you to increase the amount of energy your body needs to perform everyday tasks! Meaning, you will be able to eat MORE to maintain your current weight and improve your performance.

Before we dive into what a maintenance diet is and how it can improve your performance, we want to first chat about the dangerous of chronic under-eating. Here are four major problems posed by existing in a consistent caloric deficit.

1. Dangerous Levels of Stress

Putting some stress on the body is good. In fact, it’s necessary if you want to force your body to adapt.

But not eating enough food for too long SLOWS your body’s ability to recover, adapt and ultimately improve.

This is why an under-fueled athlete will see a plateau in her progress. Her body is too stressed trying to “survive” to be able to adapt and make the progress she wants!

This physical stress is bad enough. But what about the mental stress of chronic under-fueling? Not only does an athlete see slower physical recovery while being under-fueled, she also:

  • Has trouble concentrating during game play
  • Often feels defeated, irritable, or angry
  • Loses their mental stamina and desire to push themselves

If your sport is team-based and/or high intensity, this is a recipe for low performance!

(Video) Emotional Eating: What if Weight Loss Isn't about the Food? | Tricia Nelson | TEDxWestMonroe

2. Tired, Sick and Injured

Putting your body under chronic stress increases your risk of injury.

Every time you train without eating enough to recover, you are just adding to the stress pool rather than helping remove from it! This increases your chances of injury and increases the time it is going to take to recover from any injury you’re currently nursing or will sustain.

It all adds up to you spending more time off the field, court or track nursing injuries. Nothing should stand between you and your best. If you’ve been noticing more strains and pains, and they are lasting longer than they used to, this is your body warning you that you may not be getting what you need to recover.

3. Goodbye, Muscle

When your body is stressed, it releases hormones (chemical messengers) that help direct the rest of the body’s response to the situation. When stressed, the types of hormones released are typically catabolic, meaning they break down tissues like muscle.

In response to a stress like strength training, muscle breakdown is good. This breakdown paves the way for adaptation. But to actually get in an anabolic state that allows us to get faster, fitter and gain more muscle mass, we need to provide our body with the macronutrients it needs to repair the microscopic tears in our muscle fibers.

But if you don’t eat enough to allow your body to properly RESPOND to this stress, you deprive it of the building blocks and energy it needs to create improvement. Thus, your workouts are no longer building your body up. Even couch potatoes will lose weight when they eat under their energy demands. This is because eating under your energy demands forces your body to find fuel within itself to burn. When done right, this means turning mostly to fat. But when chronically under-fueled and overworked, it also means burning lots of muscle!

4. Not Losing Fat!

The science is clear. To lose mass, you need to be in a caloric deficit. This means burning more energy than you are taking in.

But when you don’t eat enough calories over an extended period of time, your body kicks into survival mode, as we discussed earlier. Your body eventually adapts to the current state of decreased energy supply and figures out how to survive on that supply without continuing to break down tissues to make up for the deficit.

This adaptation of a slower metabolism is your body’s way of surviving and protecting the tissues (including the fat stores) it already has! Your body is smart, and it knows if you are not supplying it with enough energy, it better start conserving the stored energy it already has.

Not eating enough for too long means that you could see the very opposite effect of what you want in your body. Chronic under-eating is a stressor to the body. Stress hormones, like cortisol, increase the visceral storage of fat cells around your stomach, waist and thighs.

When you are chronically stressed, eating more signals to your body that this “survival mode” is no longer necessary. This decrease in stress via increase in food allows your metabolism to recover. A recovered metabolism is a fancy way of saying you will be able to burn more energy both at rest and during any activity.

Simply put, by slowly introducing more food, your body gets out of survival mode and begins to operate in a more optimal manner—a manner where making the changes you want to see in your body again become possible.

Long story short, if you’re training hard but notice several of the following:

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  • Not seeing the gains you want
  • Have plateaued or declined in your training progress
  • Regularly feel fatigued, irritable or defeated
  • Have noticed a loss in muscle definition
  • Have noticed a loss or dysfunction in menstruation

…it’s time to reconsider your nutrition. Now, let’s talk about how a maintenance diet can help you bounce back.

Do I Need to ‘Reset’ My Metabolism?

No, because you can’t “reset” a metabolism. However, you can help it run smoother by reducing stress.

If you’ve been under-fueled for too long, you need to alleviate some stress.

This doesn’t mean bringing home an extra large pizza and pairing it with a side of Ben & Jerry’s for a few nights in a row (though some indulgence is perfectly healthy and fine). Introducing too many calories too quickly can promote fat gain, so what we don’t want to do is suddenly add 1,700 calories to your daily intake.

What we do want to do is bring your body out of survival mode slowly by:

  • Gradually increasing caloric intake
  • Increasing the frequency of your eating (especially if you’ve been skipping meals!)
  • Maintaining a balanced macro ratio matched to your activity level

When the body begins to recognize…

“Hey, I’m actually going to be fed on a regular basis!”

it lowers production of stress hormones, increases the metabolic rate of every process your body performs, and allows you to finally recover and improve!

More calories in equals less stress, less stress equals a faster metabolism, and a faster metabolism equals more total calories burned. Science for the win!

Chronic under-fueling shortchanges your potential and your overall well-being. But once you’re back in a state where your body is healthy enough to change in meaningful ways, how do you keep it there?

The Fully Fueled Female Athlete

High performing athletes know: Meal plans aren’t a “set it and forget it” thing.

Your nutrition needs change with the seasonality of your sport, your current level of activity, and your future goals—just like your training regimen!

How do you know if you’re eating enough?

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There are a few formulas that can give you an estimate of your dietary requirements.

One popular one is the Harris-Benedict Equation. The exact formula is outlined here. Although these formulas might get you in the ballpark of your daily calorie burn, the problem is this: these equations are only an estimate.

The best thing an athlete can do is get set up with a nutrition coach who takes into account all of the variables of your athletic performance.

Such variables include:

  • Your current activity levels, by day. This might mean having a meal plan that changes day to day, whether you are resting, training or performing.
  • Your body composition

A lot of female athletes sacrifice their performance in pursuit of the body aesthetics they believe society values. This narrow body type is simply unrealistic and quite honestly, at odds with being a strong, high-performing athlete.

However, with the right guidance on your macronutrient ratios that are dependent on your activity levels, not only will your performance improve, but your body composition will reflect this improved performance!

  • Any dietary restrictions you have

If you’re an athlete with dietary restrictions, it’s critical for you to be working closely with a nutrition coach who understands the macronutrients and micronutrients that need to be prioritized in your diet. (PS…check out my New Food Pyramid for Female Athletes)

  • And, most importantly, what you want to achieve!

There are healthy ways to change your body’s composition. But there are no quick fixes: cleanses, meal replacements and detox diets are all a scam. And as we’ve explained in great detail, eating way too little isn’t going to get you where you want, either. If you truly want to reach your performance and aesthetic goals, it takes time, adherence to scientific principles and consistency!

Working with a nutrition coach ensures you are not sabotaging your goals by accidentally committing these all-too-common mistakes!

Under-fueling is a huge problem for female athletes. Society pressures lead us to believe we always need to train more yet eat less. But these ideas simply run counter to science and get you stuck in ruts where you’re exhausted, tired, frustrated and performing poorly. It’s also important to realize that female athletes should not be obsessed with a number on a scale. Focusing more on how your clothes fit and how you’re performing in training and competition is a much smarter approach than basing whether you’ve succeeded/failed entirely on a number on the scale.

If you want to improve your performance and want a body composition to match those goals, it is time to consider if you are eating enough food.

When it comes to fueling for female athletes, often MORE FOOD is going to lead you in the direction of the improved performance and aesthetics you’re striving for!

Photo Credit: AntonioGuillem/iStock

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Why am I not losing weight even though I barely eat? ›

Conservation Mode. Hardly eating doesn't help with long-term weight loss because severe calorie restriction sends your body into conservation, or "survival," mode. Your body holds onto fat when it doesn't have enough calories to support normal functioning, according to the Waldo County General Hospital website.

Why am I gaining weight even though I barely eat? ›

Many factors can contribute to unintentional weight gain. Poor sleep, sedentary activities, and eating too many processed or sugary foods are just some of the habits that may increase your risk of weight gain.

How long does it take for your body to adjust to eating less? ›

Adjusting to healthy eating.

The key thing to remember when embarking on a health journey is to be patient with yourself as your body needs time to physically adjust to the changes in your diet as well as maintain this new healthy habit. Research shows that it can take up to 21 days to form a new habit!

Why am I not losing weight when starving myself? ›

When you starve yourself, your body goes into survival mode,” said Karah Stanley, registered dietitian with St. Elizabeth Physicians Weight Management Center. If the body perceives it's being starved and doesn't have food to turn into energy, it continues to hoard fat, rather than burn it, in case food isn't coming.

Does your body hold onto fat if you don't eat? ›

After eight hours without eating, your body will begin to use stored fats for energy. Your body will continue to use stored fat to create energy throughout the remainder of your 24-hour fast. Fasts that last longer than 24 hours may lead to your body to start converting stored proteins into energy.

Can you reset your metabolism? ›

Luckily, a slow metabolism isn't permanent, and with the right changes to your diet and lifestyle, you can rev up your metabolism — and get back to feeling better in the process.

How do I get my body out of starvation mode? ›

What's worse, when your body is consistently deprived of food, it can go into starvation mode, slowing your metabolism and making weight loss even more difficult. Eat more often. Instead of eating three square meals daily, eat small meals every three to four hours to keep your metabolism humming.

How do you know if your body is in starvation mode? ›

Without enough calories, you will quickly experience feelings of fatigue. Because your body doesn't have enough calories to burn and generate energy. You've been losing hair. This is another consequence of a lack of nutrients.

How many calories is starvation mode? ›

If you drastically slash calories and are eating a very low-calorie diet (Think: less than 1,000 calories for women and less than 1,200 calories for men), “starvation mode” can actually be starvation. Starvation from chronic undereating can be counterproductive to weight loss and dangerous to your health.

What happens to your body when you suddenly eat less? ›

When your body goes into starvation mode, you are at increased risk for the following: Abnormally low blood pressure and slow heart rate. Heart rhythm abnormalities. Electrolyte imbalances, especially potassium deficiency.

What's preventing me from losing weight? ›

There are some medical conditions that can drive weight gain and make it much harder to lose weight. These include hypothyroidism, polycystic ovarian syndrome (PCOS), and sleep apnea. Certain medications can also make weight loss harder — or even cause weight gain.

What are the side effects of starving yourself? ›

Physical symptoms of anorexia that are side effects of starvation and malnutrition include:
  • Dizziness and/or fainting.
  • Feeling tired.
  • Slow heartbeat (bradycardia) or irregular heartbeat (arrhythmia).
  • Low blood pressure (hypotension).
  • Poor concentration and focus.
  • Feeling cold all the time.
Nov 17, 2021

How much weight can you lose by not eating? ›

To prevent excessive muscle loss, the body begins to rely on fat stores to create ketones for energy, a process known as ketosis. During the first 5 days without food, a person may lose 1 to 2 kilograms (2.2 to 4.4 pounds) of body weight each day.

Does B12 speed up your metabolism? ›

B12 works by converting the food we eat into sugar and other types of fuel that keep the body running smoothly. B12 is often associated with weight loss because of its ability to boost metabolism and provide lasting energy.

What part of the body loses fat first? ›

Mostly, losing weight is an internal process. You will first lose hard fat that surrounds your organs like liver, kidneys and then you will start to lose soft fat like waistline and thigh fat. The fat loss from around the organs makes you leaner and stronger.

What triggers fat storage? ›

Insulin tells muscle, organ and even fat cells to take up the glucose and use it for fuel. It also tells fat cells to store fat—including fat from the meal—for later use. As long as insulin levels remain high, fat cells retain fat, and the other cells preferentially burn glucose (and not fat) for energy.

How many calories is too little? ›

However, calorie intake should not fall below 1,200 a day in women or 1,500 a day in men, except under the supervision of a health professional. Eating too few calories can endanger your health by depriving you of needed nutrients.

What are 3 consequences of not eating enough? ›

If you're not getting enough calories, chances are you're not getting enough vitamins and minerals either. Nutritional deficiencies may cause a long list of health complications including, but not limited to, anemia, infertility, bone loss, poor dental health and decreased thyroid function.

What are the stages of not eating? ›

The four phases include the fed state, early fasting state, fasting state, and long-term fasting state (starvation state). Each phase varies based on the primary source of energy used for the body, as well as how it affects your metabolism and levels of specific hormones.

How do you know if your metabolism is damaged? ›

Your metabolism is responsible for regulating functions such as body temperature, energy level, and how easily we gain and lose weight.
Symptoms of a Slow Metabolism
  • Weight Gain. ...
  • Lethargy & Chronic Fatigue. ...
  • Difficulty Losing Weight. ...
  • Dry, Cracked Skin. ...
  • Hair Loss. ...
  • Feeling Cold. ...
  • Sickness or Weakness. ...
  • Sugar Cravings.
Apr 19, 2017

How to test your metabolism? ›

Your doctor can prescribe a metabolism test and perform it in a medical setting. They may do a blood draw at the hospital or recommend a laboratory where your blood will be drawn. If you wish to choose your own lab, look for one that is Clinical Laboratory Improvement Amendments (CLIA) certified .

What are signs of a fast metabolism? ›

Fast metabolism symptoms or signs of high metabolism may include:
  • Weight loss.
  • Anemia.
  • Fatigue.
  • Elevated heart rate.
  • Feeling hot and sweaty often.
  • Feeling hungry often throughout the day.

How can I naturally reset my metabolism? ›

What can you do to achieve a metabolic reset?
  1. Strength train. Incorporating some strength training into your workout routine is a terrific way to fire up your metabolism. ...
  2. Choose a cardio activity. ...
  3. Try a HIIT workout. ...
  4. Add protein. ...
  5. Say yes to spicy foods. ...
  6. Avoid alcohol. ...
  7. Use caffeine in moderation. ...
  8. Drink plenty of water.
Jan 19, 2023

What does starvation feel like in your stomach? ›

Symptoms of hunger pangs

abdominal pain. a “gnawing” or “rumbling” sensation in your stomach. painful contractions in your stomach area. a feeling of “emptiness” in your stomach.

What does the beginning of starvation feel like? ›

The beginning stages of starvation impact mental status and behaviours. These symptoms show up as irritable mood, fatigue, trouble concentrating, and preoccupation with food thoughts. People with those symptoms tend to be easily distracted and have no energy.

How much do you really need to eat in a day? ›

For an average adult woman, the FDA recommends a daily intake of about 2,000 calories. Men are higher at about 2400 calories.

What happens if you eat less than 1200 calories a day? ›

A 1,200-calorie diet is much too low for most people and can result in negative side effects like dizziness, extreme hunger, nausea, micronutrient deficiencies, fatigue, headaches, and gallstones ( 23 ). Furthermore, a 1,200-calorie diet can set you up for failure if long-term weight loss is your goal.

What happens if you eat only 500 calories a day? ›

Danger of deficiencies

The greatest dangers associated with a 500-calorie diet relate to vitamin and mineral deficiencies. Vitamin and mineral deficiencies can lead to many health problems. In fact, most people cannot meet their vitamin and mineral requirements if they eat less than 1200 calories per day.

Is 900 calories a day starving? ›

No, it is not. The 900-calorie diet plan can be referred to as a very-low-calorie diet. Very low-calorie diets, aka VLCDs, are eating plans that restrict caloric intake to 800 to 900 calories per day. For an adult, such small quantities of food cannot give you enough energy to properly sustain you.

What happens if you start eating very little? ›

Typical signs that you're not eating enough can include losing weight, feeling tired, getting ill more often, hair loss, or skin problems. In time, menstrual irregularities and depression may occur. Children may not grow as expected.

What is it called when you start eating less? ›

Anorexia. If you get an anorexia diagnosis (known as anorexia nervosa), you're not eating enough food. This means you're not getting the energy you need to stay healthy.

Why am I gaining weight so fast out of nowhere? ›

It's often due to fluid retention, abnormal growths, constipation, or pregnancy. Unintentional weight gain can be periodic, continuous, or rapid. Periodic unintentional weight gain includes regular fluctuations in weight. One example of unintentional weight gain is experienced during a woman's menstrual cycle.

What does hormonal weight gain look like? ›

While body weight and fat are distributed equally in weight gain due to excess caloric intake, people with hormonal weight gain usually notice increased weight around specific body parts, such as the waist, arms, thighs, chest, and lower body.

Why am I gaining weight if I only eat once a day? ›

Eating once a day slows down your metabolism.

"If you go long periods of time without eating, your metabolism actually slows down to hold on to energy," Brenda Braslow, RD, MS with MyNetDiary. "It can defeat your efforts to cut back on calorie intake."

What causes rapid weight loss in females? ›

It might be caused by a stressful event like a divorce, losing a job, or the death of a loved one. It can also be caused by malnutrition, a health condition or a combination of things.

What illness makes you gain weight? ›

Medical reasons

In some cases, underlying medical conditions may contribute to weight gain. These include: an underactive thyroid gland (hypothyroidism) – where your thyroid gland does not produce enough hormones. Cushing's syndrome – a rare disorder that causes the over-production of steroid hormones.

Why is my lower belly so big? ›

Causes include poor diet, lack of exercise, and short or low-quality sleep. A healthy diet and active lifestyle can help people lose excess belly fat and lower the risk of problems associated with it.

What is hormone belly? ›

Sometimes, excess fat around the belly is due to hormones. Hormones help regulate many bodily functions, including metabolism, stress, hunger, and sex drive. If a person has a deficiency in certain hormones, it may result in weight gain around the abdomen, which is known as a hormonal belly.

How do I get rid of my hormonal belly? ›

Before you rush to your doctor to get a prescription for your hormonal belly, there are natural ways to readjust your levels. Reducing sugar intake, eliminating processed foods from your diet, and avoiding things like dairy, alcohol, and caffeine can all help reset your blood sugar and insulin levels.

What causes rapid weight gain in females? ›

This may be due to menstruation, heart or kidney failure, preeclampsia, or medicines you take. A rapid weight gain may be a sign of dangerous fluid retention. If you quit smoking, you might gain weight. Most people who quit smoking gain 4 to 10 pounds (2 to 4.5 kilograms) in the first 6 months after quitting.

Can you survive on one meal a day? ›

For most people, there are no serious dangers involved in eating one meal a day, other than the discomforts of feeling hungry. That said, there are some risks for people with cardiovascular disease or diabetes. Eating one meal a day can increase your blood pressure and cholesterol.

What happens if you only eat one meal a day? ›

Other studies have shown that eating one meal per day may increase fasting blood sugar levels, delay the body's response to insulin, and increase levels of the appetite-stimulating hormone ghrelin, compared to eating 3 meals per day. This can lead to extreme hunger ( 10 ).


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