Showing posts with label glycemic. Show all posts
Showing posts with label glycemic. Show all posts

Wednesday, 9 October 2013

Glycemic Index, and "White Foods"

I'd like to start a little discussion today about carbohydrates,  in particular "white foods" as well as potatoes. One of the reasons I wanted to mention this is because so many health and fitness professionals dismiss potatoes as being a bad carbohydrate choice because of the so called high glycemic index. Believe it or not potatoes have a medium index. Some people  say such ridiculous things as "avoid any and all white carbohydrates".
OK, now while I certainly agree that white bread and refined white sugar are two of the worst things we can be feeding our bodies, I definitely don't agree with avoiding any and all of these so called "white carbohydrates". Now I know all of the buzz lately has been about colorful foods and the protective antioxidants that they contain. They tell you to focus on colours and stay away from white.
"White Foods" aren't necessarily always the enemy
It's true that colourful foods are great, but it is a big mistake to specifically avoid white foods! There are plenty of white foods that have specific nutrients that are hard to find elsewhere. Let's look at a few examples...
Onions & Garlic
What about onions and garlic? They are both white and they are chock full of protective phytonutrients, vitamins, and trace minerals that aren't easy to find elsewhere in a normal diet... such nutrients as allicin, quercetin (an important flavonoid), chromium, and other unique anti-inflammatory nutrients.
In fact, onions are so powerful for our health, that one study of centenarians (people that live to over 100 years old) identified that a common thread of these amazingly healthy individuals was that they ate a lot of onions throughout their lives.  We also know that garlic is one of the most powerful substances for a strong immune system, among other qualities.  
Cauliflower
Another example of something white that is great for you is cauliflower. Cauliflower is surprisingly high in vitamin C, fiber, trace minerals, and special compounds such as glucosinolates which are anti cancer in nature, and thiocyanates (a lack of which can damage a persons immune system) , these are specifically abundant in cruciferous vegetables such as broccoli, cauliflower, and cabbage.  Another little-known fact is that some of the compounds in cruciferous vegetables help to combat other estrogenic compounds in our food supply and environment and can help prevent excess abdominal fat.  So eat up on that cauliflower!
Mushrooms
Not many people realize this, but surprisingly, even white mushrooms have high levels of unique nutrients and antioxidants. White mushrooms are high in a couple types of antioxidants called polyphenols and ergothioneine.  Some types of mushrooms, such as portobella mushrooms, are surprisingly good sources of Vitamin D.
Potatoes
Now that also leads us to another example - the humble white potatoe (which by the way, can also be found in red, yellow, purple varieties, etc). Many health professionals claim that potatoes are a bad carbohydrate because they are thought to have a high glycemic index. First of all, if you've read my Truth about Six Pack Abs ebook, then you'll understand that glycemic index is not necessarily the most important factor in choosing your carbohydrates.
While a generalization can be made that most low glycemic index carbohydrate choices will help you lose body fat more easily than higher index choices, it is not all that it's cracked up to be. There are many other factors that determine how your body will react-to and process the carbohydrates you ingest, such as glycemic load and also how you combine the high GI food with other foods.
For example,  it is known that watermelon has a high glycemic index. However, the rise in blood sugar of a normal serving of watermelon is just way too low for your body to start packing on body fat just because you ate a high  index fruit. You would have to eat such an enormous quantity of watermelon just to get enough grams of carbohydrates to have any negative glycemic effect, that it  just does not make any sense.
Not to mention that watermelon is also a great source of vitamins, minerals, and lycopene. There's just no reason to avoid it simply because it has a high GI. The point I am making is that... chocolate bars, cupcakes, and donuts make you fat, because they are full of sugar. NOT watermelons, carrots or potatoes,  French fries are excluded of course.
Also, as I mentioned, food combinations are important in how your body processes the carbohydrates and the associated blood sugar and insulin response you receive. For example, if you mix a high glycemic index carbohydrate with an extra source of fiber, healthy fats, or even certain proteins, many times the blood sugar and glycemic response will be slowed down considerably by the way you combined the food. Again, I will talk about this in detail about the entire topic in my Truth about Six Pack Abs book
Alright, so back to my point that white potatoes are actually a healthy carbohydrate as long as you eat them in the right form - that's with the entire skin left on, and please don't ruin them by deep frying them into french fries either! French fries are one of the most evil things ever invented for your health, but only because we ruin them by soaking them in a scorching bath of trans fats in the deep fryer from the hydrogenated oils that are typically used.
Keep in mind that potatoes contain so many vitamins and minerals that the list is way too long to even try. Also, as long as you eat the skins, you'll get some fiber too.
Are eating  7-9 potatoes per day going to make you fatter?
There was a study which found that potatoes not being so bad after all, I don't remember where I saw this referenced, but I recently saw a particular study that had participants eat something like 7-9 whole potatoes per day for several weeks. Here's a good newspaper article on why potatoes are good for you.
At the conclusion of the study, the potatoe eaters had actually consistently lost weight! I'd venture a guess that the reason the people lost weight is that they were probably so full from eating all of those damn potatoes, that they actually consumed less calories than normal! An average sized potato has about 100-120 calories, and I can't imagine you'd be full constantly from eating 7-9 potatoes each day. 
Of course, this does NOT mean that french fries are ok to eat!  Those will only make you fat, and the trans fat will lead to an early death.  Seriously french fries / potatoe chips are one of the most deadly foods in our food supply.  Plus, deep fried potatoes accumulate dangerous acrylamides absorbed from the frying oil that reacts with the starch, and these compounds are carcinogenic. 
Anyway, back to the 7-9 whole potatoes per day... Now I would never recommend going to those extremes, but my point is that an occasional potato is not going to hurt your efforts to get lean, especially if you combine it with some other fibrous vegetables and maybe a healthy fat and some protein. On that note, I have one of my favorite recipes for you, using potatoes.
Geary's Lean-Body Potato Side Dish
  • Desired quantity of baby potatoes, preferably a mixture of white, red, yellow, and purple baby potatoes
  • 1 red pepper
  • 1 green pepper
  • 1 yellow pepper
  • 1 or 2 onions
  • a couple cloves of garlic, finely chopped (or mashed garlic from a jar, organic preferably)
  • 1 or 2 Tbsp extra virgin olive oil and/or virgin coconut oil
  • a little salt and pepper to taste (I like using a sea salt instead of normal commercial salt)
Cut the baby potatoes into slightly smaller pieces and place in a steamer until soft all the way through. Slice up the peppers and onions into strips and add with the chopped garlic into a pan with the olive oil. Cook the peppers, onions, and garlic until tender, and then add the steamed baby potatoes. Stir it all together and serve. This is a truly delicious, and healthy side dish that goes great with chicken or red meat.
I hope you've enjoyed this little topic today about potatoes, healthy carbohydrates, glycemic index, and my delicious healthy potato recipe. If you want more recipes like this get a copy of my book Truth about Six Pack Abs.

Saturday, 20 March 2010

Potatoes and "White Foods" - for a Lean-Body?

by Mike Geary

I think it about time we started a little discussion about carbohydrates... and in particular, so called "white foods" including potatoes. One reason I wanted to talk about this is because so many health and fitness professionals trash talk potatoes about being a bad carbohydrate choice because of the high glycemic index. Some people are saying such ridiculous things as "avoid any and all white carbohydrates".

Now while I agree that white bread and refined white sugar are two of the worst things we can be feeding our bodies. I don't believe in avoiding any and all "white carbohydrates".

Believe it or not "White Foods" aren't always the enemy.

It's true that colourful foods are great, but it is also a big mistake to specifically avoid white foods! There are plenty of white foods that have specific nutrients that are hard to find elsewhere. Let's take a look at a few examples...

Onions & Garlic

What about onions and garlic? They are both white and they are chock full of protective phytonutrients, vitamins, and trace minerals that aren't easy to find elsewhere in a normal diet... such nutrients as allicin, quercetin (an important flavonoid), chromium, and other unique anti-inflammatory nutrients.

Cauliflowers

Here is another example of something white, that is great for you is cauliflower. Cauliflower is full of vitamin C, trace elements, fiber, and special compounds such as glucosinolates and thiocyanates, which are specifically abundant in cruciferous vegetables such as broccoli, cauliflower, and cabbage. A little-known fact is that some of the compounds in cruciferous vegetables help to counteract other estrogenic compounds in our food supply and environment and can help prevent excess belly fat. So eat up that cauliflower!

Mushrooms

Not many people realize this, but surprisingly, even white mushrooms have high levels of unique nutrients and antioxidants. White mushrooms are high in a couple types of antioxidants called polyphenols and ergothioneine.

Potatoes

Now that also leads us to another example - white potatoes. Many health professionals claim that potatoes are a bad carbohydrate because they are thought to have a high glycemic index. If you've read my Truth about Six Pack Abs book, you will understand that glycemic index is not necessarily the most important factor in choosing your carbohydrates.

While making the assumption that most low glycemic index carbohydrate choices will help you lose body fat easier than high glycemic index choices, it is not all that it's cracked out to be. There are many other factors that determine how your body will react-to and process the carbohydrates you ingest, such as glycemic load and also how you combine the high GI food with other foods.

For example, using glycemic load as an example... it is known that watermelons have quite a high glycemic index. However, the glycemic level of a normal serving of watermelon is just way too low for your body to start packing on body fat just because you ate a high glycemic index fruit. You would have to eat such an enormous quantity of watermelon just to get enough grams of carbohydrates to have any negative glycemic effect, that's just not logical.

Not to mention that watermelon is also a great source of vitamins, minerals, and lycopene. There's just no reason to avoid it simply because it has a high GI. The point that I am trying to get across is... candy bars, cupcakes, and donuts etc make you fat... NOT watermelons, carrots or potatoes... French fries excluded of course.

Also, as i mentioned, food combinations are important in how your body processes the carbohydrates and the associated blood sugar and insulin response you receive. E.g if you mix a high glycemic index carbohydrate with an extra source of fiber, healthy fats, or even certain proteins, many times the blood sugar and glycemic response will be slowed down considerably by the way you combined the food. I talk in great detail about this topic in my book.

Back to my point that white potatoes are actually a healthy carbohydrate as long as you eat them in the right form... with the entire skin, and please don't ruin them by deep frying them into french fries either! French fries or Chips whatever you want to call them, are one of the most evil things ever invented for your health, but only because we ruin them by soaking them in a scorching bath of trans fats in the deep fryer from the hydrogenated oils that are typically used.

Keep in mind that potatoes contain so many vitamins and minerals that the list is way too long to even try. Also, as long as you eat the skins, you get a decent shot of fiber too.

Will eating 8 potatoes per day make you fatter? of course not.

On the topic of potatoes not being so bad after all, I don't remember where I saw this referenced, but I recently saw a particular study that had participants eat something like 7-9 whole potatoes per day for several weeks.

At the conclusion of the study, the potato eaters had actually consistently lost weight! I'd venture a guess that the reason the people lost weight is that they were probably so full from eating all of those damn potatoes, that they actually consumed less calories than normal! An average sized potato only has about 100-120 calories, and I can surely imagine you'd be full constantly from eating 7-9 potatoes each day.

Now I would never recommend going to those extremes, but my point is that an occasional potato is not going to hurt your efforts to get lean, especially if you combine it with some other fibrous vegetables and maybe a healthy fat and some protein. On that note, here is one of my favorite recipes for you to try, using potatoes.

Mikes's Lean-Body Potato Side Dish

* Desired quantity of baby potatoes (I like to use this mixture I found recently at a health food store... it is a mixture of white, red, yellow, and purple baby potatoes)
* 1 red pepper
* 1 green pepper
* 1 yellow pepper
* 1 or 2 onions
* a couple cloves of garlic, finely chopped
* 1 or 2 Tbsp extra virgin olive oil and / or coconut oil
* a little salt and pepper to taste (I like using a sea salt instead of normal commercial salt)

Cut the baby potatoes into smaller pieces and place in a steamer until soft all the way through. Slice up the peppers and onions into strips and add with the chopped garlic into a pan with the olive oil. Cook the peppers, onions, and garlic until tender, and then add the steamed baby potatoes. Mix together and serve. Its is a delicious and healthy side dish that goes great with chicken or red meat.

I hope you've enjoyed this little topic today about potatoes, healthy carbohydrates, glycemic index, and my healthy potato recipe idea!


Mike Geary
Certified Personal Trainer
Certified Nutrition Specialist
Truth about Abs