This research has failed to explain why obesity rates follow a social gradient, with higher obesity rates observed in disadvantaged neighborhoods and among the working poor. Mechanistic interference by intense sweeteners was also mentioned as a contributing factor.
Various researchers have suggested that the human body cannot perceive dietary energy provided by liquid beverages or by energy-dense solid foods. Mechanisms regulating food intake were also blamed. Obesity has now been linked-through a variety of metabolic mechanisms-with excess consumption of dietary sucrose, corn sweeteners, high glycemic-index carbohydrates, fructose, fat, and even protein. However, the data were rarely consistent. Diet composition was an early focus, with suspicion falling alternately upon sugars and fats. Researchers have long sought to single out a food class underlying the global obesity epidemic. Regardless of how much you work out, if you only enjoy fattening foods you're almost always going to be overweight. Then the lipids in the fattening foods make you crave more fattening foods. Processed energy-dense foods, fast foods, snacks and sweets, soft drinks, and larger food portions have all been linked to rising obesity rates. Plus, the cravings that naturally follow exercise are usually satisfied by fat-laden processed foods in poorer people. Human physiology, conditioned through evolution, is said to respond poorly to the constantly evolving modern food supply. Rising rates of obesity, both in North America and worldwide, have been blamed on the food environment.
0 kommentar(er)
