10/02/2026
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âIâm barely eating. Why am I not losing any weight?â
People can be in a calorie deficit and have their body weight stay relatively stable. This is largely due to metabolic adaptation. Metabolic adaptation occurs when oneâs body identifies a pattern of under-eating. The body learns that it cannot trust that it will receive regular and adequate nourishment, and so the metabolism slows right down to conserve energy.
This attempt to conserve energy is particularly common in individuals that have been attempting to under-eat for a number of years, but every body is different, and some people can find that their metabolism adapts to under-eating quite quickly making any weight loss at all near impossible.
In the famous Minnesota semi-starvation experiment, after only 6 months in a calorie deficit, the mens metabolic rate dropped an average of 40%. This means that their body could maintain weight eating only 60% of an adequate intake.
Some common signs of a slowed metabolism include:
⢠Maintaining weight despite being in a deficit
⢠Constipation
⢠Fatigue
⢠Feeling cold
⢠Mood swings and irritability
⢠Insomnia
⢠Hair loss
⢠Brain fog and dizziness
Unfortunately the diet industry preys on the distress of people in this exact scenario and offers promises and âformulasâ to speed up oneâs metabolism. Make no mistake, any further attempts to reduce intake or increase exercise only alert the body that further conservation is needed.
What the diet industry (and too often the medical and allied health industry) do not tell you, is that chronic dieting leads to hormonal issues, thyroid problems, chronic health issues, weight gain or maintenance at a low intake, impaired cognitive functioning, and impaired mental health.
It can be so freeing for people when they stop trying to resist the weight their body fights harder and harder to reach. By eating consistently and adequately and accepting your bodyâs weight, you can start to restore your physical and mental health - and get your life back too.
Want to know more? Join the waitlist to see Andrea or Nicole, our friendly anti-diet dietitians (link in bio).