Monday, January 17, 2011

But What About Potatoes?


With the whole no grain challenge I've been getting the same question thrown at me repeatedly: can I eat taters? And of course, the answer is far more than a simple yes or no. Let's have a look at the good, the bad, and the tasty when it comes to these tempting tubers.

Like usual, let's get the bad news out of the way first: potatoes will definitely spike your insulin levels, which is one of the same reasons I advocate avoiding grains. If you're trying to lose weight and get healthy, keeping your insulin levels low and your sensitivity to insulin high is the order of the day. Like I said in the grain post, you only have so much storage capacity for glucose (stored as glycogen in your muscles and liver), and when those cells are full the remaining is shuttled off to your fat tissue. One of the big problems with extra fat is that excess adipose tissue is full of cells that essentially pump out inflammation at an alarming rate, and many of the diseases of the West are diseases of inflammation that's gone unchecked for too long. Even the main stream media is finally getting the message that fat doesn't make you fat.

It's not all bad in tater town, though. Potatoes have a decent omega 6 to 3 ratio of about 4:1. Grains, for example are almost all omega 6, and an imbalance of fatty acids is one of the main culprits in producing a pro inflammatory body chemistry. When I give nutrition lectures I speak of the "three legged stool of healthy eating." Leg one: eat to control inflammation. One of the main ways to do that is to maintain a balance of omega fatty acids, and  since potatoes have a decent ratio they satisfy that leg of the stool.

Leg two is keeping your acid/base balance in check. Your blood Ph is slightly alkaline, and when you eat too much acidic foods like pretty much all protein sources, alcohol, caffeine, dairy, and especially grains, your body has to buffer the load back to alkaline. Fruits and veggies are, for the most part, alkaline, so the idea is that you should eat some protein (acid), and buffer with vegetation. And potatoes, my friends, are alkaline. For those keeping count, that satisfies two legs of the three legged stool. Foods that get this far are cheat foods in my book, and if you time an intense workout and a tater eatin' session just right you can even use the higher glycemic index of potatoes to your advantage.

Leg three, by the way, is keeping your insulin levels in check, which we've already discussed. Sneaky, huh?

When I eat potatoes I try to make it on days when I've worked out hard doing something intense like sprints. Other examples are lifting heavy weights or even your own body weight. The key is to burn the glycogen stores out of your muscles first, so the insulin surge you get when you eat a starchy carb will actually get it's job done without resorting to putting more fat in storage. High intensity exercise on a regular basis will also make your cells more sensitive to insulin so your pancreas won't need to work so hard in the first place. Check back in the near future for a series on exercise...

If I haven't done much working out on a tater eatin' night I try to eat small portion of potatoes in combination with a much larger amount of vegetables of the green variety, which can help modulate the overall glycemic impact. Sweet potatoes, by the way, are lower on the glycemic index than regular potatoes, which I find odd, since they contain the word "sweet" in their name.

So, potatoes. A two-legs-of-the-stool cheat food, and a post high-intensity workout food, too.

See? It's not all bad news around here! And if you have neck or back pain, give us a call at Green Chiropractic!

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