In 2012 a new term was coined - ‘Normal Weight Obesity.’ Normal weight obesity is when someone with normal body weight has a high percentage of body fat. For males that’s more than 24 percent of body weight and for females it’s more than 31 percent. The media call it ‘Skinny Fat’. People with normal weight obesity have a similar risk for comorbidities as someone who falls outside the normal BMI range.
For example, a Mayo Clinic study published in the Journal of the American Medical Association in 2012 revealed that nearly 25 percent of people with normal weight obesity have pre-diabetes and are metabolically obese. Dr. Francisco Lopez Jimenez, who led the study said: "Women with normal weight obesity, meaning those who have high fat and a normal weight, have a two times increased risk for death or dying from heart problems or a stroke."
Another study showed that for those with low muscle mass and strength, losing weight alone may not be enough to reduce the risk of type 2 diabetics, especially if they are over the age of 60. Among other things, muscle loss is associated with insulin resistance which leads to diabetes.
So if someone is skinny, or of normal weight, do they need to diet or exercise? Yes. A normal BMI is within the range from 18.5 to 24.9. If you are in the middle to upper end of that scale you may well need to lose fat and add muscle. If so do the Skinny World Diet Program and take up regular exercise, in particular weight training. Lifting weights two to three times per week will not only improve your strength and stamina but your muscle fat ratio as well. The more muscle you have the faster your metabolism and better the regulation of insulin will be, and a host of other health benefits.