Re: Enova's Claim: Oil Slick

[Guest guest]

See: /message/17171

for a previous discussion about Enova.

on 2/19/2005 7:35 PM, Logan at loganruns73@... wrote:

> Enova's Claim: Oil Slick

>

> By Sally Squires

> Tuesday, February 1, 2005; Page HE01

>

> " I'm not asking you to change who you are, " says the

> hip young woman on the television commercial. " I am

> asking you to change how you think . . . about

> pancakes, stir-fry, pasta, brownies, shish kebab,

> French fries, waffles, salad dressing, birthday cake,

> carrot cake. . . . "

[Guest guest]

I am in " discussion " right now with one of their representatives and here is

their latest responses to my recent comments/questions on Enova Oil

Here are the questions and answers.

OC Is the original comment from thier Marketing Rep that I responded too

followed by my comment/question followed by their marketing BS (oops, I mean

answer).

I am going to respond to their comments this week, as most do not address my

concerns.

Jeff

OC: Comment in Original Post about Enova

Thus studies (referenced below) show that less of Enova oil is stored in the

body as fat, compared to other vegetable oils. And one of the studies has found

lower blood TG levels in subjects using diglyceride oil instead of TG oil.

(American Journal of Clinical Nutrition, Vol. 77, No. 5, 1133-1139, May 2003 "

" Diacylglycerols affect substrate oxidation and appetite in humans " )

S. Novick, MS, RD, LD/N questions:

Isn't that because they used less TG oil which would have produced less TGs?

However, did they measure the amount of DGs in the blood? If so, did they

increase?

ANSWER:

The process of fat digestion and absorption is very similar for DAG and TAG

molecules, with most of the fatty acids being enzymatically cleaved from the

respective glycerol molecules. The fatty acids are then re-esterified to form

TAG molecules after crossing the small-intestinal border. Reesterification of

DAG molecules after absorption is minor, as it is the TAG molecule that is

readily transported via chylomicrons. DG levels were not measured in this

study, but it is unlikely that they would increase in the blood due to the

metabolic process listed above. TGs are the primary transport structure for

fatty acids in the blood.

Jeff Novick questions:

Also if we look at the composition of the oils from the study we see that the DG

oil had less than half the SFAs, and had over 2x the Omega 3 and more Omega 6.

So, forgetting the special patented process for a minute, if I told you I was

doing an experiment with the only difference in the group being these 2 oils,

which one would we guess would do better in lowering TGs, based solely on the

SFA and PUFA? The DG oil. If I didnt show you the numbers but just told you

that the DG group would get an oil with half the SFA and 2x the Omega 3s, with

everything else the same, which do you think would have done better in lowering

TGs? The DG Oil

ANSWER:

Saturated FA content: DAG oil - 3.1%

TAG oil - 5.7%

DAG intake for this study was to represent 40% of total fat intake. Mean DAG

fat intake for the 36-hour chamber stay was 55.2g. This equates to a difference

of 1.4g of saturated fat intake for the 36-hour period.

Omega-3 FA content: DAG oil - 8.2%

TAG oil - 5.2%

Intake of Omega-3 fatty acids (18:3 alpha-linolenic acid, or ALA) is estimated

at 4.53g and 2.87g for DAG and TAG groups respectively (a difference of 1.66g

for the 36-hour period) based on consumption estimations. Intake of DHA and EPA

is not noted in the study. Conversion of ALA to longer-chain DHA or EPA is

modest in humans, with estimations of conversion ranging from 0.2-15%. Using

these conversion factors, this would account for a difference in DHA and EPA

conversion of 0.003-0.249g for the 36-hour study period. Current American Heart

Association recommendations for EPA+DHA intake include 1g of EPA+DHA for

patients with documented CHD, or 2-4g EPA+DHA for patients who need to lower

triglycerides.

For additional information, see:

Circulation. 2002;106:2747-2757.

http://www.americanheart.org/presenter.jhtml?identifier=4632

Omega-6 FA content: DAG oil - 48.3%

TAG oil - 48.4%

In other clinical studies, the TAG and DAG oils were prepared with similar fatty

acid profiles, and similar results were noted.

OC: Comment in Original Post about Enova:

Of course, in terms of weight management, it's still a matter of total calories

in vs. total calories expended. However, one study found that the increase in

fat oxidation with Enova oil (as compared to storage with traditional oils)

amounts to about 1460 g. fat a year or the equivalent of 13,140 calories (about

4 lbs.) This study also found decreases in appetite and hunger in subjects

consuming Enova oil vs. conventional oils.

Jeff Novick questions and comments:

The 13,140 calories equates to 36 calories a day, which is 3.6 lbs a year.

However, since it is calories in vs calories out, If someone ate 36 less

calories a day, they would also lose about the same 3.6 lbs. 36 calories is

the amount of calories in just less than 1 tsp of oil. So, instead of spending

more money on Enova, couldn't they just spend less money by using just under 1

tsp less of whatever oil they are using and get a similar result, in regard to

weight?

36 calories is also the equivalent of walking about 1/3 of a mile which is about

5 to 7 minutes worth of walking at an average pace. So, in terms of weight,

walking 5-7 minutes would produce the same result, and walking has also been

shown to have many other documented health benefits.

ANSWER

We recommend that Enova oil be used as part of a sensible diet. Oil in the

diet can be replaced with Enova oil to help promote a healthy lifestyle.

Enova oil is not a " weight-loss " oil. The glyceride structure of Enova

oil causes it to be metabolized differently that traditional oils, causing less

Enova oil to be stored as fat on the body. In addition, Enova oil is

lower in saturated fat than other traditional oils on the market, making it a

viable alternative to traditional cooking and salad oils.

I never meant to imply in my original post that Enova oil was a weight loss

product. However, the fact that it is metabolized for energy rather than stored

as fat gives some people the impression that it might facilitate weight loss.

So I wanted to address that and the study that showed there was a modest weight

loss in subjects using Enova oil vs. a traditional TAG oil.

OC: Cochran's Comment in Original Post about Enova:

American Journal of Clinical Nutrition, Vol. 76, No. 6, 1230-1236, December 2002

" Consumption of diacylglycerol oil as part of a reduced-energy diet enhances

loss of body weight and fat in comparison with consumption of a triacylglycerol

control oil "

Jeff Novick comment:

When I read that study (http://www.ajcn.org/cgi/content/full/76/6/1230

<http://www.ajcn.org/cgi/content/full/76/6/1230> ) it appears to me that the key

was the " reduced energy diet " and not the DG oil. And the weight loss was so

minimal that the difference between the two groups accounted for about 50

calories a day over the 24 week period. or about 1/2 of a mile walk per day.

ANSWER

See response above.

Jeff Novick comments:

Also the study says. " Finally, based on this estimate of initial energy needs,

a diet was prescribed that was intended to induce an energy deficit of

~2100-3350 kJ/d " That is the equivalent of 500-800 calories day. So, they are

counseled to lose weight by being given a recommended diet that was to produce

an energy defecit in the " range " of 500 -800 calories a day. Yet the results

between the two groups can be accounted for by less than 50 calories a day. So,

the results are within the allowed variance. And, there is no reporting of the

caloric intake estimates over the 24 week period anywhere in the study. Nor is

there any reporting of the caloric output estimates of the groups during the

study.

ANSWER:

Caloric intake estimates - The authors note that " During the trial, changes from

baseline in energy and percentage of energy from carbohydrates were not

significantly different between the diacylglycerol and triacylglycerol oil

groups... "

Caloric output estimates - The authors address caloric output in terms of

physical activity: " Physical activity, which was assessed by the 7-d physical

activity recall questionnaire, did not differ significantly between the

diacylglycerol and triacylglycerol oil groups but did change significantly over

time within each group (P < 0.01 for time). From baseline to the end of the

study, physical activity increased 10.6% and 12.8% in the diacylglycerol and

triacylglycerol oil groups, respectively. "

Additional Jeff Novick questions:

-What is the fatty acid profiles of Enova oil? Do the fatty acids have the

" trans- " configuration because of the patented process? i.e., is any

hydrogenated oils used in the process to create the diglycerides?

ANSWER:

Enova oil fatty acid profile (typical per 14g serving):

Saturated Fat - 0.5g

Polyunsaturated Fat - 8g

Monounsaturated Fat - 5g

The trans FA content of Enova oil is <3%, and typically <2.5%.

Hydrogenation is not part of the manufacturing processs. An Enova oil

product profile can be accessed at http://www.enovaoil.com/food/specs.asp.

Click on " Fact Sheet. "

OC: Origina Comment " It's made from soy and canola oil and contains the same

amount of calories and fat as other conventional oils. " and " Of course, in

terms of weight management, it's still a matter of total calories in vs. total

calories expended. " And, as stated in the article above... " The apparent

digestibilities of diacylglycerol and triacylglycerol oils were identical

(96.3%) in rats, and the energy contents measured in a bomb calorimeter were

similar (38.9 and 39.6 kJ/g for diacylglycerol and triacylglycerol,

respectively) (11).

Jeff Novicks Question:

So, If the calories of Enova oil are the same as the calories for other oil,

(as also listed on the label) how can just replacing one oil for the other

result in weight loss?

5d) ANSWER:

Clinical studies have shown that subjects replacing greater than 10g traditional

oil per day with Enova oil results in modest, but statistically significant,

weight loss when compared to control subjects. For a graphic with a brief

explanation of DAG vs. TAG metabolism go to

http://www.enovaoil.com/about/works.asp and click on " click here " at the bottom

of that page.

[Guest guest]

Jeff,

I enjoyed reading the post about your discussions with the Enova

people. Make them squirm, and don't let them get away with

substandard experiments to make overblown claims.

Tony

[Guest guest]

Logan,

You have just encountered the small serving size paradox, where

everything magically becomes zero by rounding. Enova oil has 0 grams

of Trans-Fat according with the FDA rules.

Given that the serving size is 14 grams and that Enova oil has 3%

trans fats, that is 14 x 3/100 = 0.42 grams of trans fat per serving.

Since this amount is less than 0.5 grams, the FDA allows rounding to

zero.

Normally, from the list of ingredients you would be able to determine

that there are partially hydrogenated fats and you could deduce that

THERE MUST BE some trans fats even if a zero is reported. However, in

the case of Enova, the hydrogenation is hidden in a process preceding

the formation of the 1,3-diglycerides, so the consumer never knows

about it except by digging really deep.

Tony

===

From: Logan <loganruns73@y...>

Date: Sun Feb 20, 2005 12:13 pm

Subject: Re: Enova's Claim: Oil Slick

I took a look at their fact sheet. They have the

gumption to list Trans-Fat as 0 grams, yet they have

no problem listing Saturated Fat as .5 grams. With

Total Fat at 14, it is obvious that the .5 of

Trans-Fat is omitted solely for deceptive purposes.

Nonetheless, it's good to be reminded that trans-fats

are not the sole providence of partial hydrogenation.

All oils containing LA/ALA should acquire trans-fats

during the refining process, including safflower and

sunflower.

Logan

> The trans FA content of Enova oil is <3%, and

> typically <2.5%. Hydrogenation is not part of the

> manufacturing processs. An Enova oil

> product profile can be accessed at

> http://www.enovaoil.com/food/specs.asp. Click

> on " Fact Sheet. "

[Guest guest]

>>I enjoyed reading the post about your discussions with the Enova

people. Make them squirm, and don't let them get away with substandard

experiments to make overblown claims.

The company rep and I were having the discussion on a Professional list

that has 1000s of RDs, PhDs, MDs, etc. They have now taken it off list,

have contacting me personally, and are asking me to refrain from my

" onslaught " on the product and to please allow them to present the

" other side " so people can decide.

I thought I was being gentle, so I told them, remember that song...

" I have only just begun.... "