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Carbohydrates without their wrappers Unfortunately, most Americans get the majority of their carbohydrates stripped of their natural fibers. Modern processed grains like white rice and white flour as well as many ultraprocessed foods like some sugary breakfast cereals, packaged snacks and juices have removed these fibers. They essentially come unwrapped and without instructions for the body on how much it should absorb and how it should process them. In fact, only 5% of Americans eat the recommended amount of carbohydrates with enough of their natural packaging intact. Guidelines recommend at least 25 to 30 grams of fiber a day from food. It may not be surprising that lack of fiber contributes to diabetes and obesity. What is surprising is that the fiber gap also likely contributes to heart disease, certain types of cancer and maybe even Alzheimer’s disease. One popular approach to mitigating some of the ill health effects of low fiber and high refined carbohydrates has been to limit carbohydrate intake. Such approaches include the low-carb, keto, paleo and Atkins diets. Each diet is a variation on a similar theme of limiting carbohydrates to varying amounts in different ways. There is scientific backing to the benefits of some of these diets. Research shows that limiting carbohydrates induces ketosis, a biological process that frees energy from fat reserves during starvation and prolonged exercise. Low-carbohydrate diets can also help people lose weight and lead to improvements in blood pressure and inflammation. That said, some keto diets may have negative effects on gut health. It is also unknown how they may affect heart health, some forms of cancer and other conditions in the long term. Even more confusing, research shows that people with diets high in plant-sourced carbohydrates, like the Mediterranean diet, tend to lead the longest and healthiest lives. How can this be reconciled with studies that suggest that low-carbohydrate diets can benefit metabolic health? Is a carb a carb? The answer may have to do with the types of carbohydrates that studies are evaluating. Limiting simple sugars and refined carbohydrates may improve certain aspects of metabolic health, as these are some of the most easily digested and absorbed calories. But a more sustainable and comprehensive way of improving health may be increasing the percentage of unprocessed, more complex and slowly absorbed carbohydrates that come with their natural packages and instructions intact – those that have fiber. These natural carbohydrates can be found in whole grains, beans, nuts, seeds, fruits and vegetables. They come in ratios of total carbohydrate to fiber that rarely exceed 10-to-1 and are often 5-to-1 or lower. Eating mostly whole foods is a simple way to ensure you’re consuming quality carbohydrates with the right ratios. But who doesn’t like to have a big bowl of pasta or cake with ice cream on occasion? Focusing on packaged processed foods that maintain carb-to-fiber ratios of at least as low as 10-to-1 or ideally 5-to-1 can help you make the best choices when picking more processed foods at the store. Take a look at the nutrition facts label and simply divide total carbohydrates by dietary fiber. On occasions when you’re eating out or celebrating someone’s birthday, consider taking a fiber supplement with your meal. One pilot study found that a supplement containing a blend of fibers decreased the blood sugar spike – an increase in glucose levels in the blood that if too high can damage the body over time – after a meal in healthy individuals by roughly 30%.