Not all calories are equal — a dietitian explains the different ways the kinds of foods you eat matter to your body

A calorie is a calorie is a calorie, at least from a thermodynamic standpoint. It’s defined as the amount of energy needed to raise the temperature of 1 kilogram of water by 1 degree Celsius (2.2 pounds by 1.8 degrees Fahrenheit). But when it comes to health and your body’s energy balance, not all calories are equal. For example, some studies have reported that diets that are high-protein, low-carbohydrate or a combination of the two do yield greater weight loss than diets with other levels of fat, protein and carbs. If every calorie in…

Read More

Real, fake or natural? Why sweetener type may not matter for diet

Sweetening your beverage with real sugar, “fake” sugar or a “natural” no-calorie sweetener makes little difference in the overall calories you consume in a day, a small new study suggests. In the study, 30 healthy men ages 21 to 50 each visited a clinic four times. Each time, they ate the same breakfast, followed by a beverage that contained one of four sweeteners: regular table sugar (sucrose), an artificial sweetener ( aspartame ), or a natural no-calorie sweetener made from either the stevia plant (rebaudioside A) or monk fruit (mogroside…

Read More