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Sodium: Fat Free Skim Milk vs. Gatorade

FitSugar — Wed, 19 Mar 2008 09:30:00 -0700

I seem to have a couple of new obsessions lately: sodium and sports drinks. I thought this little quiz comparing these two common beverages would be enlightening for you. Take it and see if you know which drink has a higher sodium content.

How to Drink a Sports Drink

FitSugar — Tue, 11 Mar 2008 11:45:00 -0700

You might think that drinking a sports drink is just like drinking any other drink; you open the bottle when you are thirsty and drink up. You would be wrong. If you drink one of these scientifically-engineered drinks when you are already thirsty, you have missed many of its benefits. These drinks are not designed to be guzzled at the end of a long workout, but are meant to be sipped an ounce or two at time every 10 to 15 minutes during a workout. The sodium used in sports beverages are designed to maintain your blood volume during exercise, because it can decrease through loss of fluids, aka sweat. Plus you need make sure there is enough blood to deliver energy to the working muscles in the periphery. Sports drinks also provide carbs, which help maintain blood sugar levels to keep the brain functioning and happy (the brain is fueled by carbs). Mental fatigue can cause muscle fatigue.

You should drink a sports drink, I mean sip a sports drink every 10 to 15 minutes, if you are sweating and your heart rate is elevated, as in exercise, for over a half an hour. All you need is a sip, which is about an ounce or two — between an 1/8 to a 1/4 of a cup or 30ml to 60ml. Now if you are just walking for 30 minutes on a cool, crisp day, water should do you just fine.

For more on sports drinks, check out Fitness Rocks podcast with Dr. Dan Benardot. It is illuminating.

Source

The Skinny On: Sports Drinks

FitSugar — Tue, 31 Jul 2007 08:45:00 -0700

Staying hydrated when exercising in hot, humid weather is really important. However, if you are exercising, at a moderate level, for longer than an hour you should probably reach for a sports drink.

Unlike water, sports drinks contain electrolytes and carbohydrates to help your body absorb and retain fluid lost during exercise. Because of this, sports drinks do a better job of preventing dehydration and maintaining proper electrolyte balance, especially in warm, humid conditions when you sweat out more fluid and sodium. Replenishing sodium enhances fluid absorption and retention and prevents hyponatremia, the condition when blood sodium blood levels fall below normal, which in extreme cases can be fatal.

Look for a sports drink that contains at least 500 to 700 milligrams (mg) of sodium per liter. Also select one you don't feel like you need to dilute due to taste, since you'll dilute the electrolyte and carbohydrate concentration as well. To avoid guzzling too much at one time since no one likes to run with a belly full of liquid, drink it in small amounts at regular intervals, every 15 to 20 minutes.

Fit's Tip: To figure out how much you need to drink, weigh yourself naked before and after a typical hour of working out. Then drink the same amount you lost. For example, if you lose two pounds during one hour of running, you need to replace about 32 ounces (two pounds) of fluid during each hour of exercise. This is the equation you should use if you are racing too. If you're consuming more than that, you're probably over-hydrating.

Eating & Drinking While Working Out: Not Needed

FitSugar — Mon, 04 Jun 2007 02:30:00 -0700

I don't know if you experience this but I typically spot someone eating while working out at least once every few weeks. I get the theory behind it, but for most of us, it's not necessary.

Unless you're working out for longer than two hours per day, you really do not need to supplement with high-energy (aka high calories) bars and drinks during your workout (or at all really). If you're worried about thirst, take along some water or even a sports drink (though keep in mind that most sports drinks are very high in sugar). If you're worried that you're too hungry to workout, then eat something light and easy to digest first or try and hold off until afterwards. If you are so starving you can't imagine going another minute without eating, then chances are you shouldn't be working out at that moment anway. Eating while working out is not only unsanitary for the gym, but it can lead to stomach cramping and discomfort.

Oh, and under no circumstances is it OK to eat a Subway Italian Sandwich while on the bike -- Don't laugh, I've seen it done.