Do You Really Need to Lose Weight?
7 questions that can help you decide.
The Body Mass Index
To understand the issue of weight
and wellness, you first need to know your BMI, the common measure of fatness
that is at the heart of the debate.
To find your BMI, use a BMI
calculator. A BMI of:
- 18.5 or less is considered underweight
- 18.5-24.9 is considered ideal weight
- 25-29.9 is considered overweight
- 30 or higher is considered obese
Many doctors and researchers say the BMI is a useful tool to determine
whether someone is overweight or obese, though they concede it has limitations.
But critics say the BMI is an inaccurate gauge of wellness.
"This overweight category of body mass index of 25 to 29.9 is a phony
category. It doesn't have medical justification," says Paul Campos, JD, a
law professor and author of The Diet Myth: Why America's Obsession with
Weight Is Hazardous to Your Health.
Campos says the BMI was developed as a statistical sorting tool for
researchers and was never meant as a gauge for weight loss.
"It just doesn't make sense," he says, pointing to muscular
celebrities such as Matthew McConaughey and Brad Pitt, who he says would be
considered too heavy based on their BMI numbers.
The well-muscled and the big-boned have often found themselves in the BMI's
overweight or obese categories, a frequent criticism of the body fat
measurement. Indeed, one recent study found that more than half of National
Football League (NFL) players were obese according to their BMIs.
Patrick M. O'Neil, PhD, director of the Weight Management Center at the
Medical University of South Carolina, agrees that BMI numbers alone should not
be used to determine whether someone needs to lose weight. It's important to
believe one's eyes, he says.
However, O'Neil believes the BMI is generally a good clinical tool for
"The BMI is an excellent tool for helping you figure out where you
are," he says. "It's a lot less useful for helping you figure out where
you personally need to be."
Weight and Health
How does weight affect health? If you fall into the obese category, the
evidence is pretty clear.
The April 20 Journal of the American Medical Association study
reports that obesity is responsible for an estimated 112,000 deaths per year.
Other studies have shown that obesity puts people at higher risk of health
problems such as diabetes, heart disease, and osteoarthritis.
But even people who are obese may not need to drop much weight to improve
"You don't need to lose a lot of weight in order to be healthier,"
says Cathy Nonas, RD, spokeswoman for the American Dietetic Association.
Whether you weigh 200 pounds or 400, "the first 10% of weight that you lose
- that's the most significant improvement in your health profile that
you're going to see," she says.