A low BMI is dangerous because it indicates you are likely not eating a balanced, nutritious diet full of fruit, vegetables, lean protein, dairy and whole grains. This puts you at risk for essential nutrient deficiencies that can have long-term consequences for your health.

Jan 16, 2024 · BMI is a numerical value of your weight in relation to your height. A BMI between 18.5 and 25 kg/m² indicates a normal weight. A BMI of less than 18.5 kg/m² is considered underweight. A BMI between 25 kg/m² and 29.9 kg/m² is considered overweight. A BMI of 30 kg/m² or higher is considered obese.

Jul 27, 2023 · A person is considered to be underweight if they have a body mass index (BMI) of under 18.5. Being underweight is associated with a range of health risks including bone, skin, teeth, and...

There are several factors that can contribute to a dangerously low BMI: Poor nutrition: Inadequate calorie intake or a diet lacking in essential nutrients can lead to weight loss and a low BMI. Eating disorders: Conditions like anorexia nervosa and bulimia can …

Underweight people tend to have low appetites and typically eat little, sporadically or infrequently. Being underweight can be a symptom of an underlying condition, in which case it is secondary. Unexplained weight loss may require a professional medical diagnosis by a physician. [18]

May 24, 2024 · Body mass index (BMI) uses your height and weight measurements to estimate how much body fat you have. It’s a quick screening tool that can help find out if you are in a healthy weight...

Body mass index, or BMI, is one way to estimate if an individual is underweight. A BMI under 16 is associated with an increased risk of death, warns the World Health Organization. The specific amount of weight you can lose before your body starts to …

Feb 12, 2025 · Within a population there will always be people who are at the extremes (have a high BMI or low BMI). A high or low BMI may be an indicator of poor diet, varying activity levels, or high stress. Just because someone has a ‘normal BMI’ does not mean that they are healthy.

What It Means: Your weight is lower than what’s considered healthy for your height. Energy Concerns: A lack of sufficient body fat can make it harder to stay energized throughout the day. Muscle Matters: Low BMI often means less muscle mass, which can …

It's important to use the right calculator for adults (aged 18 and over) or children and teenagers (aged between 2 and 17). Check an adult's or child's BMI to find out if they're a healthy weight.