Is an Underweight BMI Unhealthy?

While everyone knows that women with an overweight BMI are at risk from serious health problems, many women don’t believe that an underweight BMI carries nearly the same risks. After all, you can’t be too rich or too thin, right?  Most women’s fashion models are very slender, many to the point that they have a BMI in the underweight range. These ladies are held up as the standard of beauty, so it seems as if extreme thinness is the standard to which many women aspire. However, an underweight BMI in a woman can be just as dangerous as an overweight BMI if she doesn’t get adequate nutrition.

Many women who are considered underweight eat very little, so they are likely to be missing some of the vital nutrients that most people get from food. For example, if a woman doesn’t eat enough fruit or vegetables, she runs the risk of a vitamin C deficiency. Likewise, a woman who doesn’t eat meat can fall short of zinc, iron, B vitamins, or magnesium.

In addition, underweight women can place stress on their bodies just like overweight women. Every woman needs a certain amount of body fat to protect her vital organs. Besides this internal fat, other fat under the skin makes up a woman’s curves – breasts are mostly fat, and shapely hips and butts are the result of strategically placed fat filling out the figure. Women with too little body fat can suffer from anemia, persistent coldness, and menstrual problems. Also, women with a low BMI are often lacking in muscle mass, which is an important part of being able to participate in daily activities. Muscle tone also keeps women looking healthy and young.

So if you want to be sure to avoid the dangers that come from being underweight, use a BMI calculator like the one at to check your BMI and take appropriate action.