For some of us, this would be a miracle, but for others it has turned into a nightmare: unexplained weight loss. A number of years ago it happened with a sensational diet pill that actually had dried up tape worms in the capsules. So you found a number of people who couldn’t stabilize or gain weight no matter what they ate. However, more commonly people suffer from medical conditions. Many are finding that sudden and unexplained weight loss is only a symptom of a far more serious disease they suffer. The causes are varied and can go from dental problems to depression to use of certain dugs to heart failure or cancer.
In most cases, if you have lost 8 lbs in the past 10 weeks without other circumstances such as extra exercise, dieting, or being sick with a severe cold or flu, then you should probably be checked. If you have a cold or flu for more than a certain period of time, that is something to worry about too.
Some situations may not require a visit to the doctor. If you’ve suffered extra stress in your recent life, that could explain a lot of symptoms. You may be naturally eating less, exerting more energy, and not even realize it if under serious stress. You could also try supplementing your body with fat soluble vitamins like vitamins A, D, and K. And some may want to seek counseling for psychological disorders such as depression.
However, if none of these apply to you, but you are unintentionally losing 5% body weight in one month or 10% body weight in 6 months, you should probably see a doctor. In addition if you weigh less than 80% of your ideal body weight, have a BMI less than 18, or have a mid arm muscle circumference below the 15th percentile, you are underweight and should again consider increasing your weight.