Health Risks If You Are Underweight

Spread the love

Many people desire a slim body. Did you realize that being slim might potentially be just as harmful as being overweight? A body that is overly thin is an issue that must also become a concern.

So, what effects does being too thin for health have? Being underweight for one’s height is the condition known as skinny. The relation of their weight to their height is likewise considered to be out of proportion.

When a person’s body mass index (BMI) is less than 18.5, they are considered to be underweight. Use a body mass index calculator to determine what your body mass index is.

What problems will come from having a too-thin body? See the list below.

Vulnerable to Diseases

One of the issues that overly thin people deal with is a compromised immune system. They typically don’t consume enough calories, protein, or antioxidants. In truth, your body needs a sufficient amount of nourishment to maintain a robust immune system.

Protein requirements are necessary for the production of hormones, enzymes, and new tissue that is vulnerable to infection. Antioxidants are helpful in the body’s battle against free radicals. Your body is more prone to numerous ailments when either one is deficient.

Infection and being excessively thin are related, according to a 2018 study published in Clinical Microbiology and Infection. A person is more likely to contract an infectious disease if they are thinner.

Lack of Nutrition

Underweight people are far more likely to experience nutritional deficits. One nutrient’s deficiency will have an effect on many different illness situations.

For instance, if you don’t get enough iron, you’re more likely to have anemia. People with anemia will quickly feel weak. You run the danger of developing osteopenia or osteoporosis if you don’t get enough calcium.


According to Healthline, people who are excessively thin are more at risk for a decline in bone mineral density (BMD) than people who are of normal weight.

Osteoporosis is undoubtedly more likely to affect you if your bone density is lower. According to one study, 24% of women with a BMI under 18.5 had lower BMDs than those who were of normal weight.


The likelihood of developing amenorrhea is increased in people who are too skinny. You can stop menstruation if you have amenorrhea, a condition of the menstrual cycle.

Long-term irregular menstruation cycles may prevent a woman’s body from producing enough egg cells. You will be infertile and find it difficult to conceive if your body doesn’t create eggs.

Hormonal Changes

Hormonal balance is a further consequence of being excessively thin. People who are excessively thin run the risk of developing hormonal imbalances, including crucial hormones that control heart and bone health.

Reproductive hormone imbalances in women may result in irregular or nonexistent menstruation. You could lose your ability to conceive if this circumstance is permitted.

Additionally, abnormalities in stress hormones might be brought on by an excessively thin body. Stress hormones have a tendency to rise, which might affect your psychological state.

The thyroid hormone production might be impacted by being too skinny. The respiratory system, body temperature, heart rate, and muscular strength are just a few of the systems in the body where this thyroid hormone plays a significant role.

All of these body processes will naturally slow down if the hormone’s production is lowered or blocked.

Underweights Should Pay More Attention to These Risks


Overweightness affects 90% of type 2 Diabetes patients. But this illness can also affect people who are underweight. Poor dietary habits, excessive levels of stress, and inactivity are risk factors.

Heart Diseases

Compared to people who are overweight, people of normal weight who have fat surrounding them have a higher risk of dying from cardiovascular disease, according to research published in the journal Annals of Internal Medicine in 2015.

High Blood Pressure

More skinny people than overweight people are at risk of having high blood pressure. A quarter of people who are within the optimal weight range have a significant risk of developing cardiac issues, including high blood pressure, according to research from the University of Michigan.

Lung Disease

A number of studies conducted over the past 20 years have shown that older and thinner women are more likely to have chronic lung conditions such bronchitis, pneumonia, and asthma.


Women who are constantly slender are at a higher risk of developing hip fractures in middle age, according to the Archives of Internal Medicine.

That is all about the risks of being underweight. For more information, you should visit