It’s a staple in many restaurants. Before the order is made, a bowl of fresh, sometimes warm, bread shows up at the table. For many, the urge to dive into the bread may be irresistible, especially when combined with butter or an oil-vinegar mix. Yet while this free offering is enticing, a new study suggests you may want to take a pass, especially if you’re trying to maintain your weight.
The study comes from a group of American researchers who took a look at the influence of the food group known as carbohydrates, which includes bread, orange juice and sugars, on our hunger levels over time. But rather than have carbs by themselves, the team looked at how they fit into a larger meal. If they were right, the timing of the bread might have an effect on when we get hungry again.
The trial was relatively straightforward. The team asked 16 overweight or obese individuals to alter the placement of carbohydrates in the form of bread and orange juice in a meal. One group would have the carbs at the beginning of the meal, followed by protein and vegetables. Another would have the protein and vegetables first and then the carbohydrates. Finally, a control group had a combination of carbs and other food groups in the most commonly known form: a sandwich.
Determining the effect of the dietary shift came in the form of blood analysis. The team took blood samples from the volunteers right before they ate, and then every 30 minutes for the next three hours. The group then looked for the levels of a molecule called ghrelin. It’s known as the “hunger hormone,” as it has been shown to stimulate the brain to make the body feel hungry.
The way ghrelin works is quite simple. When our bodies are in need of food, the level of the hormone rises and the brain is stimulated to crave food. When we eat, ghrelin levels drop for a period of time. When it’s time to fuel up again, the levels increase.
If carbs-first eating becomes chronic, there could be a higher chance of developing insulin resistance and diabetes.
When the results came back, the control revealed the normal pattern of ghrelin cycling. The levels dropped and then slowly rose over the three hours, although they never reached the levels needed for hunger. When a person ate the carbs as …
Source:: The Huffington Post – Canada Travel