Obesity among children and adults dramatically increases the risk of chronic illnesses such as heart disease and type 2 diabetes. What are the contributing factors that lead to being overweight? In this seminar, Harvard Medical School doctors and researchers will address the stigma that surrounds obesity and discuss concrete methods, including changes to sleep and diet, that could help scale back this growing problem. Each spring, Harvard Medical School's Office of Communications and External Relations organizes a series of four free "mini-med school" classes for the general public in the heart of Boston's Longwood Medical Area. At the end of the seminar series, participants who attend three out of the four sessions receive a certificate of completion. Topics are selected for their appeal to a lay audience and have included the human genome, nutrition, sleep dynamics and health care access. Faculty from Harvard Medical School and its affiliate hospitals volunteer their time to present these lectures to the community. More »
Consequently, researchers have widely discredited the hCG diet, which involves using hCG injections, pellets, sprays, or drops, and consuming as few as 500 calories daily. The diet is problematic not only because there’s a lack of research on hCG supplements, but also because the calorie requirement is dangerously low, potentially leading to nutrient deficiencies, fatigue, hormone imbalances, blood clots, and other issues. Thus, most experts agree the hCG diet is not safe for anyone, the Mayo Clinic notes. (35)
According to a recent study published in Obesity, taking an earlier lunch break could help you lose weight. Participants who ate their lunch earlier lost 25 percent more weight than those who dined after 3 p.m. All participants consumed the same amount of calories and the same foods. Researchers speculate that this weight change could be attributed to hunger triggering cravings for junk food.
“A lot of people think the foundation of a paleo diet is high-fat meat, but I suggest that it’s vegetables,” says Hultin. The concept is to eat only foods — including meat, fish, poultry, eggs, fruits, and vegetables — that would have been available to our Paleolithic ancestors. This means grains, dairy, legumes, added sugar, and salt are all no-no’s.
If you eat a carbohydrate-rich meal (lots of pasta, rice, bread, or French fries, for example), your body releases insulin to help with the influx of all this glucose into your blood. As well as regulating blood sugar levels, insulin does two things: It prevents your fat cells from releasing fat for the body to burn as fuel (because its priority is to burn off the glucose) and it creates more fat cells for storing everything that your body can’t burn off. The result is that you gain weight and your body now requires more fuel to burn, so you eat more. Since insulin only burns carbohydrates, you crave carbs and so begins a vicious cycle of consuming carbs and gaining weight. To lose weight, the reasoning goes, you need to break this cycle by reducing carbs.
The plan laid out in the book Flat Belly Diet! says you will lose up to 15 pounds in 32 days. The first phase offers an initial anti-bloat plan, followed by four weeks of strict eating that incorporates healthy monounsaturated fats at every meal. While the diet has no research to support it, the plan is loosely based loosely on the Mediterranean diet, which is highly backed by research.
Many commercial weight-loss plans assign women to a 1,200 calorie per day diet plan. The number might be higher, however, if the woman is physically active. For example, you might see that your weight loss calorie goal is 1,200 calories per day. But if you choose to burn an extra 300 calories per day through exercise, you can eat 1,500 calories and still lose weight.
It's not just breakfast that's important when it comes to weight loss. So is lunch. A 2015 article published in Current Obesity Reports notes that planned, regular eating habits play a big role in promoting a healthy weight. Enjoy 2 cups of minestrone soup with five whole-grain crackers and 1 ounce of low-fat cheddar cheese at your next lunch for 410 calories. A quinoa salad made with 1 cup of cooked quinoa tossed with 1 cup of mixed diced raw veggies such as grape tomatoes, red onions and peppers, 1/2 cup of firm pressed tofu, 1 teaspoon of sesame oil and grated ginger for 390 calories also makes a good lunch option on your weight-loss diet. Or try a simple turkey sandwich made with two slices of whole-wheat bread, 3 ounces of turkey breast with lettuce, tomato and mustard and served with 6 ounces of nonfat yogurt, a small apple and 1 cup of sliced cucumbers for 440 calories.
This popular diet program is fairly restrictive — and for the first 30 days, dieters must cut out grains, legumes, most dairy, added sugar, and alcohol without any slip-ups, according to the Whole30 website. (29) The aim is to “reset” your body and to adopt dietary habits resulting in weight loss. Cutting out added sugar and alcohol has merit, but all the restrictions prove challenging and could lead to nutrient deficiencies and disordered eating.
This well-known plan promises weight loss of up to two pounds per week, and it has plenty of evidence to back it up. The bonus is that it’s built around real food. Weight Watchers has a strong community to support your success and offers personal coaching for an additional cost. The latest plan, WW Freestyle, has 200 zero Points foods, which makes tracking what you eat less of a burden. If you have a sweet tooth, this plan may be tough because sugar is heavily penalized. Weight Watchers doesn’t accept children under 13, pregnant women, or those with eating disorders. Find out which supermarket foods are best for weight loss.
Notes: Chop the sweet potatoes and halve the Brussels sprouts, and place on a sheet pan. Drizzle with 2 teaspoons olive oil, season with salt and pepper, and toss to coat. Roast at 450°F (230°C) until tender, about 15 minutes. Brush the chicken with 1 teaspoon olive oil and season with salt and pepper. Grill over medium-high heat until marked and no longer pink in the center, about 5 minutes per side.