Dangers of drinking coca cola
Findings from short-term experimental studies (i.e., those examining energy intake over the course of a subsequent meal or a single day) were mixed. Of 12 studies, 5 reported that individuals who consumed soft drinks consequently took in a greater amount of total energy (food energy plus beverage energy) than did those who consumed water.31–35 One study also revealed higher-than-expected energy intakes among participants given the energy they consumed from soft drinks.34 By contrast, 5 other studies reported that participants compensated at a subsequent meal for energy consumed from beverages.36–40 Still others reported mixed results, depending, for example, on how long before lunch participants consumed soft drinks.41,42 The average effect size for short-term experimental studies was 0.21 (P < .001; Q18 = 37.92, P = .004).
Body weight and obesity The more ounces of sugary beverages a person has each day, the more calories he or she takes in later in the day. This is the opposite of what happens with solid food, as people tend to compensate for a large meal by taking in fewer calories at a later meal. This compensatory effect doesn’t seem to be present after consuming soft drinks, for several possible reasons: Fluids don’t provide the same feeling of fullness or satisfaction as solid foods, as the body doesn’t “register” liquid calories as it does calories from solid food. This may prompt a person to keep eating even after intake of a high-calorie drink.
It is possible that sweet-tasting soft drinks—regardless of whether they are sweetened with sugar or a calorie-free sugar substitute—might stimulate the appetite for other sweet, high-carbohydrate foods. Even though soda may contain more sugar than a cookie, because people think of soda as a drink and a cookie as a dessert they are more likely to limit food than beverages. Dozens of studies have explored possible links between soft drinks and weight, and they consistently show that increased consumption of soft drinks is associated with increased energy (caloric) intake.
One meta-analysis of 88 studies showed that the effect appeared to be stronger in women. Studies in children and adults have found that reducing sugary drink consumption can lead to better weight control among those who are initially overweight. An 18-month trial involving 641 primarily normal-weight children randomly assigned to receive either a sugar-free, artificially sweetened beverage (sugar-free group) or a similar sugar-containing beverage (sugar group) found that replacement of sugar-containing beverages with noncaloric beverages reduced weight gain and fat accumulation in the normal-weight children. Other studies have found a significant link between sugary drink consumption and weight gain in children. One study found that for each additional 12-ounce soda children consumed each day, the odds of becoming obese increased by 60% during 1½ years of follow-up. A 20-year study on 120,000 men and women found that people who increased their sugary drink consumption by one 12-ounce serving per day gained more weight over time—on average, an extra pound every 4 years—than people who did not change their intake.
A groundbreaking study of 33,097 individuals showed that among people with a genetic predisposition for obesity, those who drank sugary drinks were more likely to be obese than those who did not. This study is important because it suggests that genetic risk for obesity does not need to become a reality if healthy habits, like avoiding sugary drinks, are followed. On the other hand, genetic obesity risk seems to be amplified by consuming sugary drinks. Read an interview with the study’s lead researcher. Alternatively, drinking water in place of sugary drinks or fruit juices is associated with lower long-term weight gain.
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