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  1. 5 Reasons Sugar is Bad for You


    5 reasons sugar is bad for you

    In my feature 5 Ways to Slow the Aging Process, I mentioned that one way to slow the aging process is to reduce the amount of sugar in your diet. Several of you emailed to ask for more specifics on why sugar is bad and exactly how it harms your health.

    So today, I thought I’d do a deeper dive into the topic of sugar. If you have a sweet tooth like I do, you might find that understanding exactly how sugar undermines your health can help motivate you to keep a lid on the cookie jar. Or, in my case, to stay away from those little red Swedish fish that I love so much.

    Why Is Sugar Bad?

    One of the most obvious reasons why sugary foods and drinks are bad and can undermine your health is that they tend to be high in calories but not all that filling. That makes it easy to over-consume them, and the excess calories can cause you to gain weight.

    Another way that sugar negatively impacts nutrition and health is that it displaces other healthier foods. People often eat sweets instead of other foods that are more nutritious and, as a result, their overall nutrition suffers. Put another way, if you were to replace sweets with nutritious foods like fruits and vegetables, you’d greatly improve the nutritional quality of your diet.

    But it’s not just the empty calories that are the problem, or even the excess calories. Because even if you’re getting all the nutrients you need and are only consuming enough calories to maintain a healthy weight, eating a lot of sugar is still bad for you.

    5 Reasons Sugar is Bad for You

    1. Sugar suppresses the immune system. When you get a big dose of sugar, like from a bottle of Coke or a candy bar, you temporarily tamp down your immune system’s ability to respond to challenges. The effect lasts for several hours, so if you eat sweets several times a day, your immune system may be perpetually operating at a distinct disadvantage.
     
    2. Sugar promotes inflammation. Inflammation, which is part of the immune response, is not always a bad thing. But eating sugary foods can fuel excessive, inappropriate inflammation that serves no useful purpose and actually promotes aging and disease.

    3. Sugar suppresses the release of human growth hormone. You know those ads in in-flight magazines that show a super-buff guy, who, thanks to a radical anti-aging program, looks about 50 even though he’s approaching 70? He’s most likely injecting himself with human growth hormone. Of course, he’s also watching his diet, spending a couple of hours a day in the gym, and using lots of self-tanner, but there’s no doubt that the hormone shots have a lot to do with his physique. Although the effects can be dramatic, hormone treatments are expensive and risky, so I don’t personally recommend this course of action. But if you want to slow down the aging process, you definitely want to do what you can to naturally enhance your body’s production of human growth hormone. Avoiding foods that are high in sugar is a good way to do that. Exercising, going longer between meals, and avoiding undue stress also help.

    4. Sugar promotes glycation. Sugar molecules treat your body like a singles bar. Once they get into your bloodstream, they start looking around for things to hook up with, like attractive protein and fat molecules. The hook-up is known as “glycation” and like most hook-ups, the results aren’t pretty. These glycated molecules act like drunken sailors, careening around your body, breaking things and peeing where they shouldn’t. They produce toxic compounds called advanced glycation end products, or, AGEs. That is perhaps the most poetically-just acronym in biology, because AGEs essentially throw the aging process into fast-forward. And much of the damage done by AGEs is irreversible. If that doesn’t motivate you to walk away from the M&Ms, I don’t know what would.

    5. Sugar raises insulin levels. An influx of sugar into your body will have a fairly predictable result: your blood sugar levels will zoom up. Shortly after, your pancreas will release a bunch of insulin to help clear sugar from your blood into your cells. As blood sugar levels go down, insulin levels return to normal. But when you eat a lot of sugar, you’re constantly calling for insulin, and that can backfire in a couple of ways. Over time, it takes more and more insulin to get the job done. Eventually, your pancreas may just stop responding to the call. Congratulations, you’re now an insulin-dependent diabetic. And along the way, exposing your cells and organs to chronically high insulin levels accelerates the aging process.

    How Much Sugar is Safe?

    So how much sugar is safe?Now that I’ve scared the living jelly beans out of you, let me put all that in perspective. A small serving of sugar or the occasional sweet treat is not going to instantly translate into a new wrinkle or trigger multiple organ failure.

    The little horror show I’ve described above is what happens when your diet is chronically high in sugar. What counts as high? The World Health Organization suggests that you keep your sugar intake to no more than 10% of total calories. For most people, that’s about 50 grams of sugar, or the amount in one 20 ounce bottle of soda (or about 28 small Swedish fish). If you’re overweight or have any other risk factors for heart disease or diabetes, it might be wise to keep it to something closer to 5%.

    How to Have Your Cake

    There’s also one circumstance in which the negative effects of sugar are somewhat mitigated: right after a vigorous workout. Strenuous exercise creates a situation in which sugar is very efficiently metabolized—assuming that you’re not diabetic, of course. Instead of hanging around in your blood stream looking for trouble, sugar consumed after you exercise is taken up very quickly by your just-worked muscles. Plus, exercise sensitizes your cells to the effects of insulin, the exact opposite of the desensitizing effect that chronic sugar intake has.

    In fact, consuming some simple sugars after a workout, along with some protein, is a good way to enhance your recovery. In a perfect world, of course, you’d choose natural, nutrient-dense sources of sugar like fresh fruit. But, if you’re looking for a way to enjoy a little treat without feeling too guilty about it, use it as your reward after a good workout.

    Monica Reinagel

    About Monica Reinagel, The Nutrition Diva
    Nutrition Diva Monica ReinagelMonica Reinagel is a board-certified Licensed Nutritionist and a professionally-trained chef. She is the host of the Nutrition Diva podcast which is part of the Quick and Dirty Tips network. She has authored three books on health and nutrition, developed recipes and diet plans for websites and other publications. Monica's professional affiliations include the American Dietetic Association, the International Association of Culinary Professionals and the American Guild of Musical Artists.

    Reprinted by arrangement with Quick and Dirty Tips, a division of Macmillan Holdings, LLC.

    Overall Health & Nutrition
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