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Weight loss is termed as drastic when you suddenly lose weight without changing your diet or workout plan. It is an alarming situation because there can be many causes of your weight loss. It can be onset of a new disease or infection. Other than physical or health problems, things like negative thoughts, over thinking, anxiety or depression can be a reason for drastic weight loss. The causes can be also a divorce, termination from a job or bad grades in exams. Drastic Weights Loss Causes can be ranging from physical to mental depending on your life condition.


Drastic weight loss is considered as losing more than 1 kg each week over an extended period. If you’ve dropped around or more than 5% of your body weight in a short period. Then It’s a good idea to consult with your doctor. Because under such conditions, your body is unable to keep up. Significant symptoms are almost certain to occur. Some may appear to be ordinary on the surface. Symptoms such as mild hair loss or feeling chilly more frequently. Take note of any other symptoms to discuss with your doctor.

But keep in mind that not every weight reduction is severe. It can occur following a life-changing incident. However, rapid weight loss might indicate one of these medical issues.


There are several causes of unexplained weight loss, some of which are severe. Cancer, digestive tract problems such as bowel disease, and mental health-related factors such as depression are the most prevalent reasons.

For others, quick weight loss may appear to be a pleasant shift. Reality is to be critical to look out for the probable causes. Drastic weight loss may be news of a medical illness, and the reasons vary from thyroid issues to cancer.

1) Addison Disease:

Addison’s disease is also termed adrenal insufficiency.

It is an uncommon condition in which your body fails to generate enough specific hormones. Addison disease is associated with the adrenal glands which are located right above the kidneys.

Your adrenal glands generate too little cortisol and aldosterone when you have Addison’s disease. Cortisol controls a variety of activities, including metabolism and hunger. Low cortisol levels might cause a lack of appetite and weight loss. This is one of the causes for drastic weight loss in people.

Addison’s symptoms usually include:

  • Low blood pressure
  • chronic exhaustion
  • muscle wasting
  • desires for salt
  • hyperpigmentation
Drastic weight loss

Drastic Weight Loss

2) Diabetes:

Diabetes is divided into two types:

  • Type 1 is an autoimmune illness
  • Type 2 occurs later in life when the body is unable to produce insulin enough.

But more than type 2 diabetes, type 1 diabetes is the cause of sudden weight change. In type 1 diabetes, your immune system targets the cells. Those cells are in your pancreas that produces insulin. Without insulin, your body cannot utilize glucose for energy. This results in elevated blood glucose levels.

Type 1 diabetes also causes:

  • excessive urination
  • dehydration
  • fatigue
  • blurred vision
  • extreme thirst
  • extreme appetite
Diabetes and Weight Loss

Diabetes and Weight Loss

3) Cancer – Biggest Cause for Drastic Weight Loss

Cancer is any of a range of illnesses defined by the formation of abnormal cells. Cells become uncontrolled and can invade and destroy normal human tissue. Cancer has the potential to spread throughout your body.

Cancer is the world’s second-largest cause of death. Weight loss may be the first indicator of blood cancer like leukemia. When an early-stage tumour (such as breast cancer) returns, weight loss might occur. This is one of the major causes for drastic weight loss in humans.

Weight Loss Cancer

Weight Loss Cancer

General symptoms of cancer include:

  • Fatigue
  • Hair Loss
  • A lump
  • Weight fluctuations
  • Skin alterations
  • Unhealed wounds
  • Alterations in bowel
  • Difficulty breathing

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4) Dementia:

Dementia could be another reason behind your sudden weight loss.

It is a combination of symptoms. It damages your memory, reasoning, and social abilities sufficiently enough to interfere with your everyday life. There is no unique illness that causes dementia.

  • Memory loss
  • Communication gaps
  • Word-finding difficulties.
  • Difficulties with vision and spatial ability
  • Problem-solving difficulties.
  • Difficulty with solving tasks.
  • Planning and organizing difficulties.

5) Depression – Silent Cause for Drastic Weight Loss

Depression is defined as a sense of sadness, loss, or emptiness. Weight loss may be a symptom of sadness. These feelings disturb regular tasks such as going to work or school.

Depression affects many persons from all areas of life, and one out of every six people will suffer from it at some point in their lives. Depression affects the same brain areas that control eating. This can result in a decrease in appetite and finally, weight loss.


Weight Loss due to Depression

Depression symptoms include:

  • continuous unhappiness
  • lack of passion for activities
  • low power
  • unable to concentrate
  • sleeping little or too
  • Mentally ill or dying ideas

6) Tuberculosis:

Tuberculosis is an infectious infection that mostly affects the lungs. Tuberculosis bacteria travel from person to person by small droplets sprayed into the air by coughs and sneezes. The WHO states that 1.5 deaths occurred from the disease by 2020. Tuberculosis is also the world’s 13th leading cause of death. It is now the second most viral cause of death, following COVID-19.

Tuberculosis and Weight Loss

Tuberculosis and Weight Loss

Among the symptoms are:

  • Severe cough
  • Chest ache
  • Blood choking
  • Fatigue
  • Night sweats
  • Chills
  • High Fever


Weight loss may be related to the loss of relatively substantial muscular tissue, commonly known as muscle wasting.

Your body is made up of fat mass, Muscles, Bones and water. You will lose weight if you lose muscle. This is also one of the major causes for drastic weight loss in men and women.

This can occur if you do not use your muscles over a long period. It is most common in persons who do not exercise or work at a desk. Exercise and a healthy diet, in general, will restore muscle loss.

Other reasons for muscle loss include:

  • Fractured bones
  • Age
  • Burns
  • Stroke
  • Arthritis

8) Amyloidosis – Rare Cause of Drastic Weight Loss

Amyloidosis is a rare condition in which an abnormal protein called amyloid grows in your organs. After growing it inhibits their normal function.

Amyloid is not usually found in the body, although it may be generated from a variety of protein types. The heart, kidneys, liver and digestive tract are among the organs that may be harmed.

Drastic Weight Loss

Drastic Weight Loss

Among the signs and symptoms of amyloidosis are:

  • Swelling in the ankles and legs
  • Shortness of breath
  • Constipation or diarrhoea, sometimes with blood
  • Rapid weight reduction
  • An irregular heartbeat

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Electrolyte imbalance:

Naturally occurring components govern many of our body’s activities. Any imbalance in the amount of these substances can lead to diseases. Electrolytes, in particular, play a vital role in cellular function and integrity.

Deficiencies in nutrition:

Excessive weight loss deprives your body of crucial nutrients required for proper operation. Furthermore, dietary deficiencies such as vitamin D and calcium might raise your chance of getting many health issues or reveal the damage.

Decrease in energy levels:

Consuming more calories or burning too many of them will have a negative impact on your energy levels. Aside from feeling physically exhausted, your cognitive skills and productivity may suffer.


If you have a nutritional lack ness, your doctor may recommend you to a nutritionist or create a diet plan to assist you to overcome the shortfall. A deficit caused by a digestive illness, such as inflammatory bowel disease, may need a particular diet to help you get the nutrients you need during periods of inflammation.

If a hormonal problem is causing the unwanted weight loss, your doctor will most likely recommend medication.

1) Consume less refined carbs:

Modern dieting solutions always focus on eliminating carbs from regular meals, however, this is not always the case. Maintaining an acceptable number of carbs in your nutrition plan is a good idea if you’re active, but favour complex options and limit your diet of refined carbohydrates, which don’t contain nearly as much dietary fibre and are sometimes deficient in nutrients.

2) Increase your intake of dietary fibre:

Including enough dietary fibre in your diet can assist in weight control by enhancing the sense of fullness.  Most fruits and vegetables, as well as legumes like beans and peas, are high in fibre.

3) More Protein

A protein surplus enhances muscle mass growth even when calories are limited. Doctors suggest 1.4 to 1.6g of protein for every kilogram of body weight for optimal muscle protein synthesis while also supplying you with enough amino acids.


Losing weight surely impacts and affects your menstrual cycle.

Your menstrual cycle is finely balanced. It’s important to be aware that losing a huge amount of weight can impact your hormone production specifically. This changes the regularity and length of your menstrual periods.

Women who lose too much weight soon may have irregular periods. A regular menstrual indicates a healthy body. Getting to a healthy weight might help women with irregular periods have more regular cycles.

Shivani Kapur

A Writer at Heart, an Engineer by Qualification, and a Soap Crafter by Profession, Shivani does not fear to speak her mind. This blog is a reflection of some of her thoughts, personal experiences mixed with some well researched information. Please feel free to reach out to her ( if you have any questions or concerns :-)


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