It may seem like I am stating the bloody obvious with the title of this post, but there is yet another index I should cover before I get to what I feel is the most important factor in fat loss.  This index offers a few benefits over the Glycemic Index (GI) and the Glycemic Load (GL) covered in the previous posts, and gets us closer to what is really important.

The Satiety Index

“The Satiety Index of Common Foods”, was published in the European Journal of Clinical Nutrition, September 1995. In this study, the researchers fed human test subjects fixed-Calorie portions of thirty-eight different foods, and then recorded the subjects’ perceived hunger following each feeding.
The results of this study clearly indicated that certain foods are much better than others for satisfying hunger. The researchers used white bread as their reference point, and arbitrarily assigned it a “Satiety Index” of 100. Foods that did a better job of satisfying hunger were given proportionately higher values, and foods that were less satisfying were assigned lower values. Among the most satisfying foods they tested were plain boiled potatoes, raw fruits, fish, and lean meats. Subjects that consumed the prescribed portion of these foods were less likely to feel hungry immediately afterward. Foods that did the poorest job of satisfying hunger included croissants, donuts, candy bars, and peanuts.

It is interesting to note that the food that scored by far the best for satisfying hunger was boiled white potato (a high GI food). It scored a whopping 323!  Now Don’t use this as an excuse to gobble down french fries.  They only scored 116. Also some of the foods that scored the worst for satisfying hunger, like peanuts (84 SI), are low GI (14 GI).

It is very easy to see that comparing foods across these various indexes gives very different results.  Many foods that would be shunned because of their high GI look not so bad under the GL scale and even better under the SI. The opposite is also true.

Choosing foods that satisfy you faster is certainly a step in the right direction when it comes to dropping bodyfat, but it is not the only factor. Relying on indexes to tell you what foods to eat can be tedious and quite honestly a pain in the ass.   In the next post I will finally bring this all together and show how you can choose foods that will get you going towards your fat loss goals, no index required.

In the previous post we discuss the Glycemic Index and its short comings. Of course when a flaw is found with a system an alternative is proposed that fixes these problems.  Walla!! the Glycemic Load Index or GL.  Lets see if this hold the answers to what foods we should be choosing for those ripped abs and tight butts.  First things first though. What exactly is the GL?

The glycemic load (GL) is a relatively new way to assess the impact of carbohydrate consumption that takes the glycemic index into account, but gives a fuller picture than does glycemic index alone. A GI value tells you only how rapidly a particular carbohydrate turns into sugar. It doesn’t tell you how much of that carbohydrate is in a serving of a particular food. You need to know both things to understand a food’s effect on blood sugar. That is where glycemic load comes in. The carbohydrate in watermelon, for example, has a high GI. But there isn’t a lot of it, so watermelon’s glycemic load is relatively low. A GL of 20 or more is high, a GL of 11 to 19 inclusive is medium, and a GL of 10 or less is low. Many foods that were previously shunned because of their high GI, were found to have a relatively low GL. Some examples of these foods are carrots, parsnips,  broad beans and pumpkin. Even rice, that would certainly be considered high GI, has a very low GL when a reasonable serving size of 75g is considered.

I think the GL is a far better gauge of a food than the GI. That being said, basing your food choices on the GL does not seem to solve all of your fat loss problems.  A year long study done at Tufts University that compared high GL to low GL diets, showed no significant bodyweight or bodyfat difference at the end of the study between the two groups. I would venture to say that if eating low GL food provided no difference over high GL food, arguing the effectiveness of the GL over the GI is probably a moot point.  Perhaps there is more to fat loss than just how a food affects or blood sugar and insulin levels? Maybe the ultimate answer is staring us right in the face but we can’t see it because of all the indexes, charts and graphs?  Next time I will look past all of these distractions and show what truly matters when losing bodyfat is your goal.

kevin@kevinweiss.com

Many people are familiar with the glycemic index (GI) but for those that are not lets start with a brief description. The glycemic index (GI) is a ranking of carbohydrates on a scale from 0 to 100 according to the extent to which they raise blood sugar levels after eating. Foods with a high GI are those which are rapidly digested and absorbed and result in marked fluctuations in blood sugar levels. Low-GI foods, by virtue of their slow digestion and absorption, produce gradual rises in blood sugar and insulin levels. It stands to reason that when fat loss is your ultimate goal a low GI diet is the path to the promised land and all high GI foods should be banished. Well maybe it is not that black and white.

One problem is how the GI of specific foods are determined. In a clinically controlled setting,  portions of food that contain 50g of carbohydrate are fed to people who have fasted overnight. The rise in blood sugar is measured every 15 minutes for 3 hours and then plotted on a graph. The area under the curve is measured and indexed against glucose at 100. That number is the food’s glycemic index. The higher the rise in blood sugar, the higher the glycemic index of that food. Although this makes nerds in lab coats happy, because of the controls that can be imposed, this is not a reflection of real life.  The digestion/absorption of previous meals, as well as the context of the carbohydrate food can drastically alter GI. Rarely are foods eaten in isolation and in the amounts that are seen in these tests. For example carrots, contain about 7% carbohydrate. This means you would have to eat more than 5 lbs of carrots first thing in the morning, by themselves, to get a GI rating. That’s not realistic. Also the GI of a food is different if it is cooked or raw, mashed or chopped, and more or less ripe.  Adding protein, fat or fiber to a carbohydrate further alters it GI.

If a lean, ripped physique is you goal, choosing food based on GI alone holds many pitfalls. Many high calorie foods have relatively low GI ratings. Ice cream, milk chocolate, and peanut M&M candies all have a lower GI rating than a yam.  I have designed many successful fat loss diets that included yams. I have yet to reccomend ice cream for someone seeking a ripped six pack.

Although I would like to take credit for exposing these flaws in the GI that is very far from the truth. These short coming have been known for a long time. Of course when a flaw is found with a particular system an alternative is proposed to pick up where the other fell short.  Enter the Glycemic Load Index or GL.  Next time we will see if this holds the answers to the never ending battle of the bulge. Have a great day.

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If you would like to contact me shoot me an email at kevin@kevinweiss.com

Many people are familiar with the glycemic index (GI) but for those that are not lets start with a brief description. The glycemic index (GI) is a ranking of carbohydrates on a scale from 0 to 100 according to the extent to which they raise blood sugar levels after eating. Foods with a high GI are those which are rapidly digested and absorbed and result in marked fluctuations in blood sugar levels. Low-GI foods, by virtue of their slow digestion and absorption, produce gradual rises in blood sugar and insulin levels. It stands to reason that when fat loss is your ultimate goal a low GI diet is the path to the promised land and all high GI foods should be banished. Well maybe it is not that black and white.

One problem is how the GI of specific foods are determined. In a clinically controlled setting,  portions of food that contain 50g of carbohydrate are fed to people who have fasted overnight. The rise in blood sugar is measured every 15 minutes for 3 hours and then plotted on a graph. The area under the curve is measured and indexed against glucose at 100. That number is the food’s glycemic index. The higher the rise in blood sugar, the higher the glycemic index of that food. Although this makes nerds in lab coats happy, because of the controls that can be imposed, this is not a reflection of real life.  The digestion/absorption of previous meals, as well as the context of the carbohydrate food can drastically alter GI. Rarely are foods eaten in isolation and in the amounts that are seen in these tests. For example carrots, contain about 7% carbohydrate. This means you would have to eat more than 5 lbs of carrots first thing in the morning, by themselves, to get a GI rating. That’s not realistic. Also the GI of a food is different if it is cooked or raw, mashed or chopped, and more or less ripe.  Adding protein, fat or fiber to a carbohydrate further alters it GI.

If a lean, ripped physique is you goal, choosing food based on GI alone holds many pitfalls. Many high calorie foods have relatively low GI ratings. Ice cream, milk chocolate, and peanut M&M candies all have a lower GI rating than a yam.  I have designed many successful fat loss diets that included yams. I have yet to reccomend ice cream for someone seeking a ripped six pack.

Although I would like to take credit for exposing these flaws in the GI that is very far from the truth. These short coming have been known for a long time. Of course when a flaw is found with a particular system an alternative is proposed to pick up where the other fell short.  Enter the Glycemic Load Index or GL.  Next time we will see if this holds the answers to the never ending battle of the bulge. Have a great day.

kevin@kevinweiss.com

In the last post it was established that your body would not burn fat for energy when insulin is present. Since insulin is released every time we eat the trick is to get insulin levels back down as fast as possible after a meal so we can get back into fat burning land. How do we do that though? Well there are a few ways and if you are reading this blog,  you are probably already doing some of them. One of the obvious ways is to eat a low carb diet, but that has many drawbacks and needs to be implemented properly to maintain workout intensity. That is a subject all its own so I will address that in a future blog. What I want to focus on today is minimizing insulin resistance, and maximizing insulin sensitivity.

We already know that insulin delivers glucose to the muscle cells, fat cells and liver. That”s a good thing. When these cells become “resistant” to insulin’s effect, bad thing definitely start happening.  Muscle cells will not “uptake” the glucose to be stored as glycogen, the fat cells release more free fatty acids into the blood steam,  and the liver ignores the signal to stop producing more glucose. Elevated blood fatty acid levels, reduced muscle glucose uptake, and increased liver glucose production all contribute to elevated blood glucose levels. This causes the pancreas  to release more insulin and the vicious circle continues. Next stop, type 2 diabetes.  Hopefully, and quite likely, if you are reading this you are a long way from this condition and are just trying to get leaner. So lets look at how to maximize your insulin sensitivity so you can get those insulin levels down and burn off  some body fat.

Here are the main factors that will help increase insulin sensitivity:

• eating less saturated fat and fewer total calories.
• keep blood sugars stable throughout the day.
• drink little or no alcohol.
• exercise regularly
• not smoking
• reducing  stress.

Obviously doing the opposite of these thing will increase insulin resistance.  If you are doing all of the above CONSISTENTLY, good for you! You are well on your way to that six pack. If you have room for improvement, and most of us do, it could be the reason you fat loss goals have stalled.

Next week I want to talk about the glycemic index, how it relates to controlling insulin levels, and why it can be misleading when planning a diet. Have a good week.

Nearly everybody  wants to know how to lose fat. In this post I want to talk about how insulin and insulin levels affect how your body does or does not burn fat.  Insulin has gotten most of its “bad rap” because it is indeed heavily involved in fat storage. Hey it is a storage hormone, that’s what it does.  For a very long time it was believed that it was the only, or at least the most important, hormone involved in fat storage. This turn out not to be true, even if some people still cling to the belief.  A compound called acylation stimulation protein or ASP has been know to be the most potent stimulator of fat storage in the fat cell for over 30 years. That point aside, insulin is still very involved in the process of fat storage and the inhibition of  fat mobilization from fat cells.  Even small increases in insulin levels essentially stops fat from being mobilized or released from the fat cells.  No fat being released from the cells, no fat available to be burned for energy.  The simple solution to this seems to be keep insulin levels low at all times. Then fat mobilization would not be inhibited and we could burn fat for energy all the time. Sounds grand doesn’t it?  And since eating carbohydrate is responsible for insulin levels rising  all we have to do is eat no carbs and the problem is solved. Ahh, if it were only that simple. As usual there is more to the story.  It is a misconception that eating carbohydrates is the only thing that raises insulin. Eating protein raises insulin too. In fact eating protein and carbs together raise insulin more than either one of the two when eaten alone.  Well now we are really screwed. How are we suppose to burn fat for energy if  the body keeps shutting down fat burning by releasing insulin every time we eat?   The answer lies in not trying to stop the release of insulin (you definitely do not want that) but rather controlling  how long insulin levels are  elevated. The sooner insulin levels drop, the sooner we can get back to tapping into the bodies energy stores. Next time i will talk about how make this happen. Have a good week.

A calorie of protein provides the same amount of energy to the body as a calorie of fat or carbohydrate.  This may in fact be true but lost in this broad statement is the fact that these different nutrients have different effects on metabolism and hormone secretion that are far  more important than just their caloric value. One of the major hormones influenced by nutrient intake is insulin.

So what is Insulin? In simple terms insulin is defined as a polypeptide hormone  that regulates carbohydrate metabolism.In simpler terms this means that after a meal, insulin deals with the rise in blood sugar by delivering it to the cells where it can be used for energy.  While this function is very important, insulin does much more. A study in 1999 showed that insulin is involved in many critical metabolic functions including, the breakdown and utilization (burning) of both dietary and body fat. Insulin was shown to inhibits fat breakdown, so when insulin levels are elevated your body cannot break down stored fat to be used for energy.  If you cannot burn bodyfat for energy it does not seem likely you will reduce your fat stores. Insulin must be the worst thing in the world! Anything that stops us from burning bodyfat and achieving that highly coveted six pack must be completely done away with! Not so fast.  That type of thinking gets babies thrown out with the bath water.  Over the next several posts I will discuss, 

1)Why and when insulin is bad.

2)Why and when insulin is good.

3)How to eat to minimize the bad and maximize the good.

Not sure how many posts this will be broken into as it is a massive subject but I hope you stay tuned.

I have been competing in natural bodybuilding for over 20 years. I have eaten a few meals cold out of a tupperware container. Probably a few thousand. Thats just what you do. You make a plan, and you stick to the plan.

I am now 10 weeks out from my next competition and I have been “sticking to my plan” for quite some time now. As a matter of fact yesterday I had lunch after my workout at a well know pizza joint in town, just as planned. I know what your thinking. “oh that must be your cheat meal” or something to that effect. Well it wasn’t. It was just a regular day that we had just happened to plan to go out for lunch. The key word there is plan.On Friday we decided we would go for lunch after working out on Saturday. I took a few minutes Friday night to pull the nutritional information for some restaurants off the internet. That is the nice thing about large chain restaurants. They all post their menu info online. Because I know how many calories and what breakdown my average meals are, I was able to skim through this information and in a very short time knew exactly what I could order. I did not even have to look at the menu when I got there.

When I am discussing fat loss plans with clients the issue of planning ahead always comes up. It has to. It is the single biggest thing that will determine if you will succeed or not. Planning ahead does not mean you are sentenced to a life of solitary eating, shunned by the rest of society. You just have to take those extra few minutes and plan your restaurant meals the same way you plan your home meals. The only difference is someone else does the cooking! What could be better than that? And before I sign off I just want to say to those of you that are going to claim you don’t have time or the technical savvy to find the food information, bullshit! If you can figure out how to find this blog (and I am glad you did) you can find the restaurant info. Happy dining.