Why Are We a Nation of the Obese & Unwell?

Ingredients Label for SimilacEveryone? despairs? about? spiraling obesity, heart disease, and diabetes rates in America. We point to sloth, gluttony,? and? an? inability? to? follow nutrition advice. But before we judge too harshly, let us take a fresh look at body chemistry. How do our bodies respond to what we eat?

High? fructose? corn? syrup (HFCS)? has? received? a? terrible? rap over the last few years. It has been blamed? for? everything? from? high blood? pressure,? to? doubled? triglyceride levels, obesity, diabetes, and to overeating since it fails to stimulate the? hormone (leptin)? that? encourages? fat? burning? and? signals? the brain to reduce hunger. Experts also inform? us? there? is? no? receptor? for fructose on the beta cells that produce insulin, so HFCS does not trigger insulin release. Insulin?s job is to escort sugar out of the bloodstream before it can cause massive damage. Last, it is said that fructose, for all of its? calories,? does? not? suppress? the hunger? hormone,? ghrelin.? Without that brain signal for satiety, we continue to eat.

The? corn? industry? furiously refutes these allegations. In 2008, it launched? an? advertising? campaign vigorously? equating? HFCS? to? sucrose, or table sugar.

And? guess? what.? They? are right!? HFCS? is? no? worse? than? sucrose (if you lay aside for a moment the issue of genetically engineered crops and possible contamination of HFCS with mercury)!? It’s also no? better.? Our? bodies process sucrose and HFCS the same way? because? their? chemical? structures? are? nearly? identical.? They? are both roughly half fructose and half glucose.? (Sucrose? is? 50/50;? HFCS? is 42-55 percent fructose.)

Glucose Versus Fructose

Bread, juice & scotchGlucose in?moderation is?not a problem. It is what our bodies were designed?to run on. The? body in normal metabolism can use eighty percent of glucose. Fructose is the common denominator that makes table sugar and HFCS equally toxic ? guilty of all the above and more.

Context and dosage matter. Neither pure fructose?nor sugar was ever meant to be dissociated from the fiber and?nutrients with which? they naturally?occur.?The high?fiber content of fruits and sugarcane for instance discourages excessive consumption, slows down the entrance of fructose into the?bloodstream, and help moderate? negative? metabolic?effects. Also,?the nutrients and enzymes in foods that contain fructose help metabolize it. A whole? food,? including its fiber, is a perfect packet of nutrition.

Dr. Lustig, a pediatric metabolic specialist from the University of Southern California says that fructose, whether from sucrose or HFCS, is metabolized? exactly like ethanol with but one exception ? where?each is metabolized. Your brain metabolizes?your favorite whisky so you fully experience its alcohol toxicity. It is your liver that must process nearly three-fourths of your favorite fruit juice, soda, or other? fructose-loaded? beverage? ? into ethanol ? so you never feel the damage. Dr. Lustig goes on to say that nevertheless, fructose causes eight? out? of? the? twelve? problems excessive alcohol?consumption? is known for: liver dysfunction, heart problems, high blood pressure, improper fat metabolism, inflammation of the pancreas, obesity, fetal alcohol? syndrome,? and? addiction.

He points out that:

    • Uric acid, from fructose metabolism increases blood pressure ? and contributes to gout.
    • Thirty percent of fructose ends up as fat, not glucose. He points to a study of medical students who ingested high amounts of fructose for six days. In that six-day? period,? their? triglyceride levels doubled. Fat-making increased by more than five times, and the number of free fatty acids in the blood (FFAs) also doubled, causing a doubling of insulin resistance. Insulin resistance is an early warning sign of diabetes development.
    • Some of the fat does not make it out of the liver, so it contributes to a fatty liver ?? a kind of hepatitis.
    • Fructose? keeps? your? brain? from sensing leptin (leptin resistance), so? you? overeat? and? likely,? make more fat. If you read Mouth Matters,? you? know? leptin? works through? the? brain?s? hypothalamus,? therefore? it? also? influences other? functions? as? well. Some of? these? are? the? stress? response through the adrenal glands, bone growth,? thyroid? function,? the sympathetic nervous system, and reproductive behavior.
    • Fructose metabolism contributes to? insulin? resistance? in? the? liver. In this case, the pancreas has to work harder to pump out more insulin. High insulin leads to higher blood pressure. High insulin also leads? leptin? resistance,? further fat making, and other metabolic problems.
    • Fructose is seven times more like to? cause? the? arterial? glycation products called AGEs that are discussed in Mouth Matters.
    • The sugars that make it into the liver? must? be? phosphorylated, therefore? the? body can? quickly become depleted of phosphate.
    • Cellular? energy? generation? from sugar metabolism is called ATP. As ATP breaks down, it degrades into the waste product, uric acid. Uric acid causes gout. It also contributes? to? high? blood? pressure? because it blocks nitric oxide (NO) in the? blood? vessels.? NO? decreases blood pressure.

Perhaps? more? critical? than all? the? above:? after? all? the? metabolic passes? fructose? makes? through? the body, roughly 60 percent exit as LDLs, the reason so many doctors pass out statin? prescriptions,? such? as? Lipitor and? Crestor.? And? these? are? not? just any LDLs. LDLs can be broken down into two groups ? the large ?floaters? that are too big and buoyant to pass through? the? lining? of? blood? vessel walls to cause the damage of atherosclerosis,? and? the? VLDLs.? These? very low? density? LDLs? are? the? ones? that can burrow into your circulatory system.? Because? currently? LDL? tests? do not? differentiate? what? ratio? of? LDLs to? VLDLs? you? have,? Dr.? Lustig? contends? a? more? accurate? assessment of where you stand for heart disease risk is the triglyceride to HDL ratio. If your? triglycerides? are? low? and? HDLs high, you have a high fraction of large, buoyant LDLs. High triglycerides and low? HDLs? signal? a? problem.? Dietary fat raises large, buoyant LDLs; sugars raise VLDLs!

Glucose? metabolism? does not move you to type II diabetes, obesity, and heart disease. Fructose metabolism does.

 

A Closer Look at Sugar Metabolism

 

Sugar Facts to Ponder

    • Total sugar consumption in the? United States is about 149 pounds per year. Of that, HFCS intake is 79 pounds/year.
    • Anything? ending? in ?-ose?? is? a? sugar.? Levulose equals fructose.
    • As? fats? began? to? get? a? bad? reputation? in? the 1980s, processed foods began to omit them. Also removed was fiber. In their stead, added sugars improved taste and provided browning. Fiber intake has plummeted from 100 – 300 grams per day to an average of 12 grams per day.
    • A century ago, typical fructose consumption was 15? grams/day.? Today, ?73? grams/day? is? not? uncommon for adolescents that drink soda, energy, or sport drinks.
    • Agave syrup is nearly all fructose.
    • The Seven Countries Study mentioned? in Mouth Matters correlated heart disease with fat intake and, as was said, is the basis for the fat guidelines recommended over the last 30 years in America. Only in Greece and Japan did fat intake not correlate? with cardiovascular? disease.? These? two countries? had? significantly? lower? rates? of? heart disease. Japan had the lowest fat consumption ? around 9 percent ? but about 37 percent of? the calories in the Greek diet derived from fat. The key was the type of fats they ate. But the other significant? feature? of? the? study? was? contained in one paragraph. The author, Ancel Keys, noted that in the five countries where high fat intake correlated with high rates of heart disease, sugar intake surged in line with fat consumption. Keys noted that the conclusions about fat intake could not be disentangled from the issue of increased sugar intake.
    • Note:? HFCS? and? sucrose? are? each? roughly? half glucose.? Glucose? does? stimulate ?leptin? and? decrease the hunger hormone ghrelin, so there is a? slight moderation in hunger when they are ingested in fractionated form.
    • Get rid of all sugared liquids including sports and energy drinks. Drink only water or milk.
    • Eat all carbohydrates with fiber. Fiber is an essential nutrient. (Whole fruit is healthy in moderation. It is juice, isolated from the nutrients contained in a whole food and from the fiber that slows down the sugar absorption, that is problematic. That is, the fiber in fruit is the antidote to its fructose.)
    • Wait 20 minutes for 2nd portions, so the brain has time to get the signal you are full.
    • Buy screen time (texting, computer, or TV) minute-for-minute with physical activity. Exercise is critical because it:
      • Improves skeletal muscle insulin sensitivity
      • Reduces stress. Stress and obesity are related.
    • Exercise burns off energy before sugar can turn into VLDLs.

This post is a synthesis of information from Mouth Matters and a lecture, ?Sugar: The Bitter Truth.? Given by Dr. Robert H. Lustig, neuroendocrinologist and professor of pediatrics at the University of California.

New!

Discover more critical details about sugar and its extensive negative downstream health consequences in my two books:

Mouth Matters: Healthy Mouth, Healthy Body?(2014)

and

Primal Dentistry: Less is MORE (2018)

and on my new website?primaldentistry.org.

Beer Without the BuZZ

Limited Availability:?apologies in advance for the impossibility of answering/researching all personal e-mail queries or comments posted to various blogs. I will however selectively answer those of a general nature so readers can benefit from other?s questions.?Please note:?Carol Vander Stoep is a dental hygienist. Just as a dentist may not legally diagnose or offer personalized dental treatment advice via the Internet, neither may she. Carol will not dispense dental/medical advice via email ? if you have dental concerns, please schedule a consultation with a dental professional whose philosophy most closely aligns with yours.?Mouth Matters?and?Primal Dentistry?books and database as well as this website is an offering to help enlighten you about possible considerations and choices.

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