In the 2-year POUNDS Lost randomized clinical trial based in Boston, Massachusetts, and Baton Rouge, Louisiana, that examined the effects of energy-restricted diets on weight changes, baseline plasma concentrations of major PFASs were measured among 621 overweight and obese participants aged 30–70 years. Body weight was measured at baseline and 6, 12, 18, and 24 months. RMR and other metabolic parameters, including glucose, lipids, thyroid hormones, and leptin, were measured at baseline and 6 and 24 months. Participants lost an average of 6.4 kg of body weight during the first 6 months (weight-loss period) and subsequently regained an average of 2.7 kg of body weight during the period of 6–24 months (weight regain period). After multivariate adjustment, baseline PFAS concentrations were not significantly associated with concurrent body weight or weight loss during the first 6 months. In contrast, higher baseline levels of PFASs were significantly associated with a greater weight regain, primarily in women. In women, comparing the highest to the lowest tertiles of PFAS concentrations, the multivariate-adjusted mean weight regain (SE) was 4.0 (0.8) versus 2.1 (0.9) kg for perfluorooctanesulfonic acid (PFOS) (Ptrend = 0.01); 4.3 (0.9) versus 2.2 (0.8) kg for perfluorooctanoic acid (PFOA) (Ptrend = 0.007); 4.7 (0.9) versus 2.5 (0.9) kg for perfluorononanoic acid (PFNA) (Ptrend = 0.006); 4.9 (0.9) versus 2.7 (0.8) kg for perfluorohexanesulfonic acid (PFHxS) (Ptrend = 0.009); and 4.2 (0.8) versus 2.5 (0.9) kg for perfluorodecanoic acid (PFDA) (Ptrend = 0.03). When further adjusted for changes in body weight or thyroid hormones during the first 6 months, results remained similar. Moreover, higher baseline plasma PFAS concentrations, especially for PFOS and PFNA, were significantly associated with greater decline in RMR during the weight-loss period and less increase in RMR during the weight regain period in both men and women. Limitations of the study include the possibility of unmeasured or residual confounding by socioeconomic and psychosocial factors, as well as possible relapse to the usual diet prior to randomization, which could have been rich in foods contaminated by PFASs through food packaging and also dense in energy.
We’ve already established how chewing thoroughly can ensure you eat a meal at a leisurely pace, but there are other tricks you can use to slow down, too, like giving your fork a break between bites. A study in the Journal of the American Dietetic Association found that slow eaters took in 66 fewer calories per meal, but compared to their fast-eating peers, they felt like they had eaten more. While 66 calories might not sound like much, cutting that amount out of every meal adds up to a weight loss of more than 20 pounds a year!
“This seemingly-innocent food is almost always loaded with added sugar. In fact, most companies use synonyms or alternative words for plain old ‘sugar’ to disguise it. ” Lisa Hayim, registered dietitian and founder of The Well Necessities tells us in 37 Worst Breakfast Habits for Your Waistline. And she’s right: Choosing a cup of Kashi Indigo Morning Organic Corn Cereal over ¾ cup of Kashi Organic Promise Cranberry, Spelt and Flax Granola, will slash 160 calories off your breakfast!
It's truly disturbing when doctors come up with seemingly fad diets that could prove dangerous, but that appears to be happening all the time and most of them are also pretty successful. The latest to join the trend is an American doctor who is providing a drastic and quick weight-loss method, the K-E Diet. It involves putting food into your body through the nose, using a dripping tube.