Rich and poor to clash over sugar in WHO's healthy diet plan
BMJ 2004; 328 doi: https://doi.org/10.1136/bmj.328.7442.730-a (Published 25 March 2004) Cite this as: BMJ 2004;328:730All rapid responses
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In my view, the WHO report, although well-meaning may be just another
amoung other important reports which are usually ignored by the consumer.
I agree that simple carbohydrate consumption is a major public health
issue, and has profound implications relative to disease or health
outcome. However, the question is whether people will refrain from eating
it. The recommendation that individuals eat no more that 10% of their
daily total caloric intake from simple sugars has little meaning to the
average individual. This recommendation is also by no means a new
revelation. The other authors have made extremely good arguments and I
applaud them. There is no doubt that refined carbohydrate comsumption is a
health hazard in many respects.
It may be prudent however to introduce some new policies and change some
attitudes if we are to make an impact upon childhood obesity and all the
associated health problems. The implications of an international study
with it's associated recommendations may be too far removed from the
realities that this issue presents. Namely, our children have direct
access to sugar at school,hockey arenas,libraries,public areas,
hospitals,fitness facilities just to name a few. Sugar is cheap,pleasing
to the palate, addictive and stabilizes food. Thusly ,it is contained in
our food chain in a manner which one could describe as insidious. The
attraction to sugar begins in early childhood when our precious little
ones are introduced to concentrated fructose in baby foods or in the
juices they are fed. I don't need to remind the reader of the direct link
between fructose and obesity? At any rate, our children develop an
tollerance for sugar at a very early age. I have seen children eat a
measure of sugar which would make me sick, but they are simply not
satisfied even with this dose. The behavioral changes which occur if they
are forbidden to eat sugar is striking!
Since people usually do not calculate the percentage of calories they
consume from any source, these recommendations have little practical
value. It makes more sense to try to get children to change the way they
eat and subsequently their parents may also have to finally start to set a
proper example. A few changes directed toward child-directed market
advertising, vending permit location, educational initiatives,and physical
education programming would be helpful. Ulimately,our children stand
little chance of altering what they become unless we collectively change
our attitudes and cooresponding behavior in a realistic and appropriate
manner. Do not assume the food industry will take a leadership role in
this issue. Parents, the schools and the media have the most profound
influence upon our children. Lets us act in accordance with the best
intentions to influence the most important investment we have persuant to
a brighter future, our children.
Competing interests:
None declared
Competing interests: No competing interests
The glycemic index has become a very poular concept, not least in the
media - it seems many people today let the GI values influence their
choices of food.
The blood glucose rise after a meal of 50 grams of available
carbohydrates is measured for some time, and the area under the curve is
compared to that of a standard meal (bread or pure glucose). "Available
carbohydrates" include not only glucose and its polymers such as maltose
and starches, but also fructose (and galactose), including disaccharides
such as common refined sugar. However, fructose is transported and
metabolized by largely different pathways from glucose, and does not
contribute much to the blood glucose level (instead, it seems to be
largely metabolized to triglycerides).
I think this means that sucrose- and fructose-containing foods will
get GI values that are undeservedly and misleadingly low. Fructose has its
own effects on health and should be treated as a separate entity - it has
been suggested that the fructose moiety of sucrose is more dangerous than
the glucose moiety. A "GI" based only on available glucose and its
polymers would, I believe, have given a much more realistic rating of
foods sweetened with sugar or high fructose corn syrup, as well as e.g.
honey, fruit juice and milk products.
Competing interests:
None declared
Competing interests: No competing interests
When are we going to cease tolerating processed simple sugar
consumption?
In the last 100 years, consuming sugar has increased from slightly a
modest 20 lbs to somewhere between 120-150 lbs processed simple sugar each
year. W.B. Grant's summarized review implicated this annual increase of
dietary processed sugar with ischemic and cardiovascular heart disease
rate reported in sedentary human consumers:
"The mechanism linking sugar to heart disease seems primarily to be
the production of triglycerides. Excess sugar, in the form of fructose
directly or from sucrose, metabolizes to triglycerides, leading to large
increases in serum triglycerides and is incorporated predominantly into
very low density lipoprotein (VLDL)cholesterol. Both elevated
triglycerides and VLDLs are risk factors for CHD. Simple sugars also cause
a host of other problems, such as hyperglycemia, hypoglycemia, hypoxia,
and impaired immune system response, all of which can lead to
cardiovascular problems. Simple sugars also replace foods rich in vitamins
and minerals, and sugar metabolism involves several B vitamins. A
deficiency in three B vitamins is linked to elevated plasma Homocysteine
levels. Sucrose, in particular the fructose moiety of the sucrose
molecule, as well as fructose itself, may induce oxidative damage through
increased glycation of proteins (associated with complications of
diabetes) and cross-linking of tissue proteins [1]."
At the rate of 120 lbs processed simple sugar annually calculates to
eating 149 grams (5.2 ounces) or 600 calories sugar each day. What is the
impact of 149 grams processed sugar once it traverses the gut and imposes
a presence on blood glucose profile?
A single gram of sugar raises blood sugar significantly.
Blood Glucose Rises @ Constant Rate Per Gram Sugar (Norms = 65-110
mg/dL)
Weight 100 lbs/45 kg: 1 gram carbohydrate raises blood glucose 5
points
Weight 150 lbs/68 kg: 1 gram carbohydrate raises blood glucose 4
points
Weight 200 lbs/91 kg: 1 gram carbohydrate raises blood glucose 3
points
In my opinion, responsible health care should direct their patients
toward consuming natural food fibers, healthy Omega-3/Omega-6 fatty acids,
to accompany any form of simple sugar in order to reduce blood glucose
levels from peaking excessively high. Both dietary fat and fiber reduce
simple sugar absorption rate. The sweet-tooth, comfort-food craving
resolution should be to substitute whole fiber-rich, calorie-sparse
natural fruit in place of calorie-dense processed sugar. That a food
processor or professional dietetic organizations would promote or permit
sugar as an additive for enhancing taste pleasures is akin to promulgating
cigarette smoking in children and adults. No? Armstrong et al., (2)
associated sugar consumption's Correlation Coefficients (CCr) related to
Ischemic Heart Disease and mortality in 30 countries as 0.76 for men and
0.69 for women, while the condemned cigarette's CCr was a mere 0.41 for
men and 0.55 for women.
We need to run from the siren's craving sugar moiety, as did "Ulysses
writhe, in hemp fast bound..."
References
[1] Milk and Other Dietary Influences on Coronary Heart Disease by
William B. Grant, Ph.D. In Alternative Medicine Review - Volume 3, Number
4, August 1998. free full text @:
http://www.thorne.com/altmedrev/fulltext/milk3-4.html
[2] Armstrong BK, Mann JI, Adelstein AM, Eskin F. Commodity
consumption and ischemic heart disease mortality, with special reference
to dietary practices. J Chron Dis 1975;28:455-469.
Competing interests:
None declared
Competing interests: No competing interests
During the past 22 years of clinical practice as a clinical
nutritionist and researcher seeking the determinants in chronic illness
conditions, especially in the 14 to 25 year age group. One is convinced
that whilst other factors in the personal environment may be even more
important, when it comes to nutrition, there can be no doubt that glycemic
index aside, sucrose intake is the common denominator in most illness
conditions, because sugar per se, contains no nutrients for its own
digestion and therefore, robs essential and sometimes critically low body
stores of nutrients for its digestion.
WHO and all concerned are to be applauded. However, whilst being a
supreme optimist and, even though Australia has come to the party, one
will be very surprised if Australia shows even the slightest proactive
role in limiting sugar intake in this country or for that matter any
country willing to purchase Australian grown sugar.
Our sugar farmers are distraught at being rejected by the US. in
recent trade negotiations. Our government has too many vested interests
and dependencies on the three killers tobacco, alcohol and refined
carbohydrates to "walk the talk"
Geoffrey Leigh
(clinical director)
Australian Institute of Biological Medicine
Competing interests:
None declared
Competing interests: No competing interests
Carbohydrates
For more detailed review on dietary carbohydrates, see controlled
carb special issue in "Metabolic Syndrome and Related Disorders":
http://www.liebertpub.com/met/default1.asp
Competing interests:
None declared
Competing interests: No competing interests