Diet & Weight Loss Archive

Research we're watching

American adults are gaining weight, according to data from the CDC. Twelve U.S. states now have obesity rates of 35% or higher, compared with just six states in 2017 and nine states in 2018. Experts say the trend is particularly concerning because adults with obesity are more prone to severe outcomes from COVID-19.

According to the CDC report, racial and ethnic minority groups are disproportionately affected by obesity. Prevalence rates nationwide were

Ask the doctors

Q. I'm trying to eat less sugar. Can you offer any tips that can help?

A. First, congratulations. Cutting down your consumption of sugar can help protect your health in the long term. Sugar-heavy diets have been linked to health conditions, including obesity, diabetes, and heart disease. Most Americans eat far too much sugar. A U.S. government health and diet survey from 2015–16 found that the average American eats about 17 teaspoons of sugar a day. The Dietary Guidelines for Americans recommend eating no more than the equivalent of 12 teaspoons of sugar a day, and the American Heart Association suggests no more than the equivalent of six teaspoons per day. To cut down on your sugar consumption, your first goal should be to focus on incorporating more whole, unprocessed foods into your daily diet. Eating more of these foods can crowd out processed sources of added sugars in your diet.

Ask the doctors

Q. My partner says I've been snoring lately. Are there any home remedies I can use to help me stop?

A. Snoring occurs when muscles in your airway relax during sleep, narrowing the airway and making your breath sounds louder as the air forces its way through. There are a number of strategies that can help. Try sleeping on your side instead of your back, which pushes your tongue to the back of your mouth. Clear nasal congestion resulting from allergies or a stuffy nose. Avoid alcohol (which may act as a sedative) and sleep medications known as benzodiazepines, which may cause your airway tissues to relax, making snoring worse. Losing weight can also help, because surplus tissue, caused by weight gain, can put pressure on and compress the airway, making snoring worse. However, if your snoring does not improve, your partner notices that you have periods during the night where your breathing ­appears to stop, or you regularly feel drowsy during the day, it may be time to pay a visit to your doctor. You could have a condition called obstructive sleep apnea, which may require treatment.

In the journals

Scientists continue to explore the right balance of carbohydrates and fat in people's diets. But for overweight or obese older adults, a recent study found that a low-carbohydrate, high-fat diet might offer special health benefits. The results were published online Aug. 12, 2020, by Nutrition and Metabolism.

Researchers asked 40 obese adults, ages 60 to 75, to follow an eight-week diet in which 10% of calories came from carbs, 25% from protein, and 65% from fat. Carb sources included leafy greens, non-starchy vegetables, some fruit, and high-fiber grains. Protein intake consisted of eggs, fish, pork, and poultry. Fat-containing foods included olive oil, coconut oil, nut oils, nut butter, cheese, coconut milk, and avocados.

Eating more than you should since the start of the pandemic, especially unhealthy, highly processed snack foods? If you’re looking for advice on how to break your snacking habits and form new, better habits with healthier snacks, try these tips.

Growing evidence shows that intermittent fasting leads to significant weight loss. A recent study contradicted these findings, but the way this study was designed and implemented raises some questions about its conclusions.

Excess weight carries health risks. But how much is too much?

 Image: © FredFroese/Getty Images

The idea that someone can be "fat and fit" — that is, overweight but still healthy — has been around for some time. But don't be fooled.

"The latest science is quite clear that excess weight can carry considerable health risks, including a higher risk for heart attack and stroke," says Dr. Jorge Plutzky, director of preventive cardiology at Harvard-affiliated Brigham and Women's Hospital. "While there is no one-size-fits-all number when it comes to a person's ideal weight, men should not ignore significant weight gain and the implications it has for their future health."

Put the focus on food quality and healthy lifestyle practices to attain a healthy weight.

Most people have been taught that losing weight is a matter of simple math. Cut calories — specifically 3,500 calories, and you'll lose a pound. But as it turns out, experts are learning that this decades-old strategy is actually pretty misguided.

"This idea of 'a calorie in and a calorie out' when it comes to weight loss is not only antiquated, it's just wrong," says Dr. Fatima Cody Stanford, an obesity specialist and assistant professor of medicine and pediatrics at Harvard Medical School.

Erectile dysfunction (ED) medications are relatively safe and work for most men, but they aren’t right for every man. Here are six proven strategies that can help –– and offer added benefits on overall health and quality of life.

Studies of drugs, diets, and devices all come with their own unique set of challenges.

The best way to know if a new medical treatment truly works is with a randomized controlled trial — the "gold standard" of research studies, also known simply as a clinical trial. Volunteers are randomly assigned to receive either the new treatment or the comparison, which may be a placebo (an inactive therapy) or a treatment that's already available.

As the nation's top cause of death, cardiovascular disease has been at the leading edge of evidence generation, says Dr. Robert Yeh, director of the Smith Center for Outcomes Research in Cardiology at Harvard-affiliated Beth Israel Deaconess Medical Center. "We probably have more evidence for cardiovascular treatments than for any other field of medicine," he says. Among the studies with the greatest impact were the clinical trials that heralded new therapies to treat heart attacks. These include clot-dissolving drugs in the 1980s, followed in the 1990s by artery-opening angioplasty procedures, which remain the standard of care today. Stents, the tiny mesh tubes used in these procedures, have also been extensively studied in clinical trials (see "Testing devices: Different dilemmas").