Diet & Weight Loss Archive

Unhealthy lifestyle habits, chronic diseases, and genetic conditions can damage the kidneys and reduce their ability to do their many jobs. But many precautions can help protect the kidneys. Examples include controlling diabetes; lowering high blood pressure; moderating intake of salt, alcohol, and protein; limiting intake of oxalate-rich foods such as spinach, almonds, or cashews; losing weight; stopping smoking; exercising regularly; staying hydrated; limiting the use of nonsteroidal anti-inflammatory drugs (NSAIDs); and getting annual kidney function tests.

By age 40, one in five women has dealt with an eating disorder, twice the proportion of women known to be affected by age 21. Risks for anorexia, bulimia, and binge eating can rise at midlife due to job stressors, an empty nest, and dating again after divorce or widowhood. Health effects can include bone loss, heart problems, lung conditions, gastrointestinal issues, diabetes, and skin breakdown. Signs of an eating disorder include dramatic weight fluctuations, excessive exercising, and preoccupation with weight, calories, and body size and shape.

Weight-loss surgery is now viewed as a way to both prevent and treat health problems linked to extreme obesity, such as diabetes, heart disease, and sleep apnea. Annually, more than 250,000 Americans undergo bariatric procedures, which can help extend their lives. Weight-loss procedures include sleeve gastrectomy, gastric bypass, and gastric banding, which reduce stomach size and change the way the body absorbs food. The surgery adds to other weight-loss measures such as diet, exercise, and medications.

The American Heart Association recently revised its checklist for achieving optimal heart health. Adequate sleep was added, and updates were made to previous recommendations for diet, cholesterol and blood sugar measurements, and nicotine exposure.

Too much or too little potassium can harm the heart. Diet, medications, and kidney function can affect the body's potassium level. Dietary potassium helps keep blood pressure in a normal range, but most Americans don't consume enough of this mineral. However, people taking medications that raise potassium levels—which includes certain drugs to treat high blood pressure and heart failure—should avoid salt substitutes made with potassium chloride.

Hybrid exercise training combines heart-pumping aerobic action with muscle-strengthening moves in the same exercise session. The strategy has the advantage of meeting two key goals of the federal Physical Activity Guidelines in one fell swoop. And it also appears to be one of the best—and most time-efficient—ways for people who are overweight to lower their risk of cardiovascular-related risk factors. Strong muscles boost a person's basal metabolic rate—the amount of energy the body needs to keep working during rest. That improves weight-loss efforts by ramping up the number of calories burned.

Recent guidelines suggest a blood pressure reading of less than 120/80 mm Hg as normal. But the ideal number for individuals depends on their individual goals and whether they also have a chronic condition, such as heart disease or kidney disease.

Intermittent fasting is limiting the window of time each day when a person eats. It has become popular as a weight loss tool, so people want to know if it's effective and whether it can work for them, and a recent study attempted to provide some answers.

Limiting meals to a certain window of time each day, an approach called time-restricted eating, didn't appear to help people lose any more weight compared with ordinary calorie restriction in a small randomized trial published in 2022.

A new study suggests a high-fiber diet may protect against dementia. In a group of about 3,700 older adults, those who consumed the most fiber (about 20 grams daily) had the lowest rates of dementia, and those who ate the least fiber (8 grams daily) had the highest rates.