Workout of the Day:
“CrossFit Total”
Three attempts for one rep max of each of the following:
Back Squat
Shoulder Press
Deadlift
(Compare total to June 1, 2009.)
The Invictus mascot, Sarah the Dingo, is glad squirrels are Paleo-approved.
A Closer Look at Agave Nectar
Written by George Economou
So as I mentioned in yesterday’s post, the Paleo foods at last weekend’s potluck were amazing. But I was concerned with the use, and potential misconception, of agave nectar. There were at least two dishes that used agave as a sweetener, and I’ve heard about it being used by other athletes in the gym. This raises a red flag with me because I can remember Robb Wolf calling it “liquid death” or something along those lines. When it comes to nutrition, I trust in Robb, but this is the Invictus Blog! Our readers expect and deserve some independent research, so I did a little.
From a philosophical perspective, agave nectar probably should not be considered paleo-friendly. While the naming suggests that it is some sort of divine gift collected in buckets by a prepubescent Central/South American boy who merely tapped a cactus with a spigot, there is actually some processing involved. Pulling US Patent 5846333 – Method of producing fructose syrup from agave plants, you can read how “a pulp of milled agave plant” is processed in order to produce a “hydrolyzed fructose extract.” I’m pretty sure that Paleo-George did not have access to the cationic and anionic resins used in the process, or the inulin enzymes, but he probably was willing to fight off swarms of 20lb Paleolithic bees to get to some honey.
From a more scientific perspective, “liquid death” is probably a fitting term. On October 13th, Calvin wrote “Low-Glycemic – Part one.” He touched on how a low GI can be deceiving when determining whether or not something is good for you. Agave nectar has a relatively low GI (10-19 depending on brand), and I’m sure Cal will mention something about how low glycemic loads should be considered in your diet. The reason behind the relatively low GI in agave is the fructose; typical agave is about 90% fructose and 10% glucose. There are many problems associated with the high fructose levels, and it makes wonderful bedtime reading (see Fructose, insulin resistance, and metabolic dyslipidemia). Here are some highlights:
- Fructose is mostly only processed to glycogen by the liver. When you force the liver to work so hard to metabolize abnormal amounts of it, the long-term effects are disastrous. One study showed that the“livers of rats on a high fructose diet looked like the livers of alcoholics, plugged with fat and cirrhotic.”
- Excess fructose not processed by the liver turns into triglycerides (blood fats). This is bad and can potentially lead to metabolic syndrome.
- Even with the low GI, fructose gives as high a blood sugar spike as glucose, leading to insulin resistance and Type II Diabetes.
I think the philosophical argument is strong enough to deter the use of agave nectar, or at least limit the use of it. If you chose to embrace the Paleo diet, it was probably because you wanted the long-term health benefits associated with it. Part of receiving those benefits means cutting ties with modern man’s diet, including the desserts. That’s not to say that a little cheating is a horrible thing. Personally, I set aside one cheat dessert night a week – a pint of Ben and Jerry’s. Is it good for me? Probably not, but if that’s my one cheat, I’m not going to kid myself with supposedly “natural” substitutes…I’m cheating big.
Tags: Nutrition
World’s most beautiful full-figured dingo!
how can fructose give as high a sugar spike as glucose if its GI as low? i thought GI by definition was how big the spike was (area under the curve?). does that mean it just goes high really fast but goes down just as fast (small AUC)?
Bummer that I ate coconut milk ice cream last night when I might as well have eaten Chunky Monkey…
PS: thanks for the shout out on the costume! Yay!
Great job 6 a.m. on the CFT! I like being surrounded by strong people…maybe one of you could rub off on me? (oh wait, that’s Barry’s job)
Thanks for the hug, Nicky.
Dan, fructose is an isomer of glucose. Both have the same molecular formula (C6 H12 O6) but different structural formulas. Because of the different structural arrangements, fructose is digested differently from glucose. Instead of being digested in the small intestine, fructose passes unchanged into the portal vein where it is directed to the liver as George mentioned. This accounts for the low GI immediately after consumption.
Thank you George! I have been TRYING to tell people about the ugly side of agave nectar since I found out myself from Robb. I knew Coconut Bliss was too good to be true…these things always are.
I can’t wait until tomorrow night when I cheat w/ the limited edition Ben & Jerry’s Ginger Snap! They better bring back Pumpkin Cheesecake Mousse this year but I haven’t seen it yet…
Rich, I hope you represented today. Wink, you too. How’d it go?
For a complete read go to:
http://www.naturalnews.com/024892_fructose_food_health.html
Blue Agave Nectar is Not a Safe Sweetener
When the Spaniards came to the New World, around 1535, they brought with them a
desire for brandy. When their supplies ran out they had to find a new alcoholic beverage to replace their lost brandy. The Spaniards found that by distilling the juice of the plant now known as the blue agave plant they could produce a potent alcoholic beverage, which over time has evolved into what we now call tequila. In order to produce a sweetener from the blue agave plant, the entire pineapple -like, giant root bulb of the plant is removed from the earth. It is then dried and juiced, making an agave starch juice. This in no way resembles any form of traditional use of the blue agave plant. While great for distilling tequila, the blue agave plant, when transformed through a chemical process into refined fructose, may contain many properties that make them dangerous and toxic for regular human consumption.
“Yucca species, together with other agaves, are known to contain large quantities of saponins,” according to Tyler’s Honest Herbal. Saponins in many varieties of agave plants are toxic steroid derivatives, as well as purgatives, and are to be avoided during pregnancy or breastfeeding because they might cause or contribute to miscarriage. These toxins have adverse effects on non-pregnant people and many health compromised consumer categories as well. They are known to contribute to internal hemorrhaging by destroying red blood cells, and they may gravely negatively harm people taking statin and high blood pressure drugs. Agave may also stimulate blood flow in the uterus.(10) Other first hand reports indicate agave may promote sterility in women. Since the agaves used for agave syrup are not being used in their traditional way, there should be a warning label on the sweetener packages that it may promote miscarriage during pregnancy, through weakening the uterine lining.
What’s Wrong With Fructose?
Once eaten, refined fructose appears as triglycerides in the blood stream, or as stored body fat. Elevated triglyceride levels, caused by consumption of refined fructose, are building blocks for hardening human arteries. Metabolic studies have proven the relationship between refined fructose and obesity.(11) Because fructose is not converted to blood glucose, refined fructose doesn’t raise nor crash human blood glucose levels — hence the claim that it is safe for diabetics. Supposedly, refined fructose has a low glycemic index, and won’t affect your blood sugar negatively. But the food labels are deceptive. Refined fructose is not really safe for diabetics. “High fructose from agave or corn will kill a diabetic or hypoglycemic much faster than refined white sugar,” says Mr. Bianchi. “By eating high fructose syrups, you are clogging the veins, creating inflammation, and increasing body fat, while stressing your heart. This is in part because refined fructose is foreign to the body, and is not recognized by it.”
The average person consumes about 98 pounds of highly refined corn fructose per year in the USA, that roughly translates into half a cup of refined fructose per day. In an average supermarket, at least 2/3 of all items contain some form of highly refined fructose, because it is one of the cheapest ingredients and fillers for foods, next to water, air, and salt. In health food stores, some foods contain a sweetener called crystalline fructose or other sweeteners labeled as fructose. Essentially, these are all refined corn fructose, labeled in a way to trick people that it is something more natural. Mr. Bianchi concludes:
“The simple answer tends to be the correct one. There is no land of milk and agave. Milk comes from goats, cows, humans, etc., and honey comes from bees. What I want people to understand is that mislabeling a sweetener like agave syrup is about money and profit, to the real determent of your health. The unethical factor is that the natural health food business has gone to great lengths in the case of agave to defraud consumers, by deceiving and lying to those who are trying to seek better health. There is something ethically worse about a company pretending to sell something all natural to people seeking health, than a mainstream company not pretending that their food is healthier. For example, nobody selling fast and junk foods is advocating it is health food. When you are in a natural health food store, you expect to pay extra money for something that is good for you. We have con artists here, pretending to deliver better health at a higher cost, when in reality it is equal to, or much worse than the many other sweeteners or harmful junk food. People are expecting to receive health, and are intentionally being defrauded for profit.”
Amber Agave Syrup (refined fructose)
Agave syrup (refined fructose) comes in two colors: clear or light, and amber. What is this difference? Mr. Bianchi explains, “Due to poor quality control in the agave processing plants in Mexico, sometimes the fructose gets burned after being heated above 140 degrees Fahrenheit, it creates a darker, or amber color.”
Chain Food Stores and Health Food Stores
When Western Commerce Corporation was shut down, due to their agave syrup alteration scheme in 2000, the big guys in the food industry stayed away from any agave syrups. They knew better than to risk lawsuits, and health consumer fraud. “They were clear that agave was criminally mislabeled per US Code Of Federal Regulation labeling laws, with an untried sweetener, new to the market, that contained saponins, and was not clearly approved as safe for use.” explains Mr. Bianchi. For many years following this bust agave syrup was not used.
But recently, some sellers in the agave syrup field, once quiet, have begun sneaking back into the food and beverage chain. And retail food giants like Whole Foods, Wegman’s, Trader Joes and Kroger, (12) who should know better, and who should know the food labeling laws and requirements, still have no hesitation in selling the toxic, unapproved, and mislabeled refined fructose agave syrup, as well as products containing it. Mr. Bianchi explains the legality of this practice. “The simple answer here, again, tends to be the correct one. The stores carry agave products knowing that if they are caught, the legal responsibility will be on the agave sellers and producers, and not the stores. They will just pull it off the shelves. They may also be victims themselves and lied to by the purveyors and sellers of agave products. So long as agave products are profitable, the stores will carry them, regardless of fraudulent labeling or health concerns. Stores will continue to carry agave until consumer fraud complaints to local district attorneys, consumer unions, class action litigation or severe reactions like death ensue.”
Conclusions on Agave Syrup
Without the FDA making efforts to enforce food-labeling laws, consumers cannot be certain that what they are eating is even what the label says it is. New sweeteners like agave syrup (refined fructose) were made to coin a profit, and not to help or assist vital health. Due to the lies from many companies who sell agave syrup (refined fructose), you have been led to believe that it is a safe and a natural sweetener. The retail refined agave syrup label does not explain that it goes through a complicated chemical refining process of enzymatic digestion, which converts the starch into the free, man-made chemical fructose that has a direct link to serious the degenerative disease conditions so prevalent in our culture. While high fructose agave syrup won’t spike your blood sugar levels, the fructose in it will cause: mineral depletion, liver inflammation, hardening of the arteries, insulin resistance leading to diabetes, cardio-vascular disease, obesity, and may be toxic for use during pregnancy.
If you want to buy something sweet, get a piece of fruit, not a candy bar labeled as a “health food.” If you want to create something sweet, use sweeteners that are known to be safer. For uncooked dishes, unheated raw honey or dates work well. For cooked dishes or sweet drinks, a good organic maple syrup, or even freshly juiced apple juice or orange juice can provide delicious and relatively safe sweetness. In general, to be healthy, we cannot eat sugar all day, no matter how natural the form of sugar is, or is claimed to be. One should limit total sweetener consumption to approximately 10% of daily calories. Or one sweet side dish per day, (like a bowl of fruit with yogurt.)
While it may be depressing news to hear about the lack of standards in the health food world, let this news help encourage you to seek access to more pure and unrefined foods and sweetener sources, so that you can be healthier.
I hope this is not a double post…
For a complete read on Agave go to
http://www.naturalnews.com/024892_fructose_food_health.html
Blue Agave Nectar is Not a Safe Sweetener
When the Spaniards came to the New World, around 1535, they brought with them a
desire for brandy. When their supplies ran out they had to find a new alcoholic beverage to replace their lost brandy. The Spaniards found that by distilling the juice of the plant now known as the blue agave plant they could produce a potent alcoholic beverage, which over time has evolved into what we now call tequila. In order to produce a sweetener from the blue agave plant, the entire pineapple -like, giant root bulb of the plant is removed from the earth. It is then dried and juiced, making an agave starch juice. This in no way resembles any form of traditional use of the blue agave plant. While great for distilling tequila, the blue agave plant, when transformed through a chemical process into refined fructose, may contain many properties that make them dangerous and toxic for regular human consumption.
“Yucca species, together with other agaves, are known to contain large quantities of saponins,” according to Tyler’s Honest Herbal. Saponins in many varieties of agave plants are toxic steroid derivatives, as well as purgatives, and are to be avoided during pregnancy or breastfeeding because they might cause or contribute to miscarriage. These toxins have adverse effects on non-pregnant people and many health compromised consumer categories as well. They are known to contribute to internal hemorrhaging by destroying red blood cells, and they may gravely negatively harm people taking statin and high blood pressure drugs. Agave may also stimulate blood flow in the uterus.(10) Other first hand reports indicate agave may promote sterility in women. Since the agaves used for agave syrup are not being used in their traditional way, there should be a warning label on the sweetener packages that it may promote miscarriage during pregnancy, through weakening the uterine lining.
What’s Wrong With Fructose?
Once eaten, refined fructose appears as triglycerides in the blood stream, or as stored body fat. Elevated triglyceride levels, caused by consumption of refined fructose, are building blocks for hardening human arteries. Metabolic studies have proven the relationship between refined fructose and obesity.(11) Because fructose is not converted to blood glucose, refined fructose doesn’t raise nor crash human blood glucose levels — hence the claim that it is safe for diabetics. Supposedly, refined fructose has a low glycemic index, and won’t affect your blood sugar negatively. But the food labels are deceptive. Refined fructose is not really safe for diabetics. “High fructose from agave or corn will kill a diabetic or hypoglycemic much faster than refined white sugar,” says Mr. Bianchi. “By eating high fructose syrups, you are clogging the veins, creating inflammation, and increasing body fat, while stressing your heart. This is in part because refined fructose is foreign to the body, and is not recognized by it.”
The average person consumes about 98 pounds of highly refined corn fructose per year in the USA, that roughly translates into half a cup of refined fructose per day. In an average supermarket, at least 2/3 of all items contain some form of highly refined fructose, because it is one of the cheapest ingredients and fillers for foods, next to water, air, and salt. In health food stores, some foods contain a sweetener called crystalline fructose or other sweeteners labeled as fructose. Essentially, these are all refined corn fructose, labeled in a way to trick people that it is something more natural. Mr. Bianchi concludes:
“The simple answer tends to be the correct one. There is no land of milk and agave. Milk comes from goats, cows, humans, etc., and honey comes from bees. What I want people to understand is that mislabeling a sweetener like agave syrup is about money and profit, to the real determent of your health. The unethical factor is that the natural health food business has gone to great lengths in the case of agave to defraud consumers, by deceiving and lying to those who are trying to seek better health. There is something ethically worse about a company pretending to sell something all natural to people seeking health, than a mainstream company not pretending that their food is healthier. For example, nobody selling fast and junk foods is advocating it is health food. When you are in a natural health food store, you expect to pay extra money for something that is good for you. We have con artists here, pretending to deliver better health at a higher cost, when in reality it is equal to, or much worse than the many other sweeteners or harmful junk food. People are expecting to receive health, and are intentionally being defrauded for profit.”
Amber Agave Syrup (refined fructose)
Agave syrup (refined fructose) comes in two colors: clear or light, and amber. What is this difference? Mr. Bianchi explains, “Due to poor quality control in the agave processing plants in Mexico, sometimes the fructose gets burned after being heated above 140 degrees Fahrenheit, it creates a darker, or amber color.”
Chain Food Stores and Health Food Stores
When Western Commerce Corporation was shut down, due to their agave syrup alteration scheme in 2000, the big guys in the food industry stayed away from any agave syrups. They knew better than to risk lawsuits, and health consumer fraud. “They were clear that agave was criminally mislabeled per US Code Of Federal Regulation labeling laws, with an untried sweetener, new to the market, that contained saponins, and was not clearly approved as safe for use.” explains Mr. Bianchi. For many years following this bust agave syrup was not used.
But recently, some sellers in the agave syrup field, once quiet, have begun sneaking back into the food and beverage chain. And retail food giants like Whole Foods, Wegman’s, Trader Joes and Kroger, (12) who should know better, and who should know the food labeling laws and requirements, still have no hesitation in selling the toxic, unapproved, and mislabeled refined fructose agave syrup, as well as products containing it. Mr. Bianchi explains the legality of this practice. “The simple answer here, again, tends to be the correct one. The stores carry agave products knowing that if they are caught, the legal responsibility will be on the agave sellers and producers, and not the stores. They will just pull it off the shelves. They may also be victims themselves and lied to by the purveyors and sellers of agave products. So long as agave products are profitable, the stores will carry them, regardless of fraudulent labeling or health concerns. Stores will continue to carry agave until consumer fraud complaints to local district attorneys, consumer unions, class action litigation or severe reactions like death ensue.”
Conclusions on Agave Syrup
Without the FDA making efforts to enforce food-labeling laws, consumers cannot be certain that what they are eating is even what the label says it is. New sweeteners like agave syrup (refined fructose) were made to coin a profit, and not to help or assist vital health. Due to the lies from many companies who sell agave syrup (refined fructose), you have been led to believe that it is a safe and a natural sweetener. The retail refined agave syrup label does not explain that it goes through a complicated chemical refining process of enzymatic digestion, which converts the starch into the free, man-made chemical fructose that has a direct link to serious the degenerative disease conditions so prevalent in our culture. While high fructose agave syrup won’t spike your blood sugar levels, the fructose in it will cause: mineral depletion, liver inflammation, hardening of the arteries, insulin resistance leading to diabetes, cardio-vascular disease, obesity, and may be toxic for use during pregnancy.
If you want to buy something sweet, get a piece of fruit, not a candy bar labeled as a “health food.” If you want to create something sweet, use sweeteners that are known to be safer. For uncooked dishes, unheated raw honey or dates work well. For cooked dishes or sweet drinks, a good organic maple syrup, or even freshly juiced apple juice or orange juice can provide delicious and relatively safe sweetness. In general, to be healthy, we cannot eat sugar all day, no matter how natural the form of sugar is, or is claimed to be. One should limit total sweetener consumption to approximately 10% of daily calories. Or one sweet side dish per day, (like a bowl of fruit with yogurt.)
While it may be depressing news to hear about the lack of standards in the health food world, let this news help encourage you to seek access to more pure and unrefined foods and sweetener sources, so that you can be healthier.
calvin,
in his post he says “Even with the low GI, fructose gives as high a blood sugar spike as glucose, leading to insulin resistance and Type II Diabetes.”
I understand why fructose has a low GI. What I don’t understand is how it can give “as high a blood sugar spike as glucose” with a low GI.
[...] Invictus recently posted an article about the misconceptions about “paleo” sweeteners. Often times, agave, honey, and maple [...]
[...] I got this recipe again from performance menu. After making it I read some negative things about agave nectar. I know to be weary of too much CHO/sugars, but maybe next time I may try substituting with [...]