Showing posts with label Jean Antonello. Show all posts
Showing posts with label Jean Antonello. Show all posts

Tuesday, March 27, 2018

Naturally Thin by Jean Antonello


Rating: WARTY!

Erratum:
"...but it will relax a bit as you and your body gets into a rhythm together." Wrong verb person. Should be 'get', not 'gets'.

This is from an advance review copy for which I thank the publisher.

I'm always suspicious of books, especially diet books, where the author feels a need to put lettered credentials after their name. If you look at books written by legitimate scientists, for example, they never put their credentials after their name. Richard Dawkins's books are by 'Richard Dawkins', period, not by 'Richard Dawkins PhD'. Carl Sagan's were the same, as are Neil deGrasse Tyson's and Jim Al-Khalili, but you never see their books trailing letters after the author's name. Just sayin'!

There's always something new out about eating a healthy diet. Just yesterday (as I write this - March 26th), there was a report in the Washington Post wherein Satchin Panda, researcher at the Salk Institute in San Diego, was asked about a study on mice employing a technique known as time-restricted feeding. In this method, you eat more or less what you want, but only during an eight hour period. The rest of the time you fast (as it were), and this appears to work in mice. Whether it will work in humans remains to be seen!

But the real issue of a book like this is the content - does it make sense? Does it work? Is it anything really new? I have to say that I was not impressed by this short book which has very repetitive content and which seems to have only the one message which is simply common sense: eat healthily and exercise if you want to lose weight! If people are dumb enough that they need to read this in a book to get it, then this is the book for them, but the long-winded message it sends is obvious to anyone who cares to actually think about it. It's a sad commentary on the state of science education in the USA, I have to add, if we truly do need books like this, and an indictment of how 'owned' our elected representatives are by the food business (as well as the NRA and the oil companies, and so on).

If that was all there was to it though, I wouldn’t see any harm in the book, but it offers nothing more than the author's own opinions, some of which are way wrong. Yes she's a nurse, and therefore has some medical training, I used to work with nurses and I respect what they do, but while being a nurse should make one an expert in patient care, it doesn't necessarily endow a person with an abundance of worldly smarts any more than would being a doctor, or a car mechanic, or an artist.

One of the first issues I encountered was that there was an image of a list. Prior to swiping to this screen I had read how to follow this image: “Begin with FAMINE at the top and move clockwise.” There was no clock, just a list and the word 'famine' was not in the list! Note that this was an ARC, so perhaps in the final print version the instructions match the image? The word 'famine' however is itself worth a mention because in this book, despite it being so short, that word appears relentlessly like a mantra, along with its companion, 'feast'. Famine is repeated 17 times and that's just the first chapter! The repetition was too much.

The author makes sweeping statements for as sparse as the bristles are on her broom, such as: “We’ve established that dieters can only restrict their food intake for so long before they lose control of their eating.” I would agree that this has been established, as evidenced by countless failed diet plans, and as bolstered by a knowledge of evolution and physiology, but for the author to claim that she has established it is misleading, because all she offers is opinion and anecdotal stories. What studies she quotes are not referenced anywhere I could find in the book, so what they establish is open to question.

There is a lot of misinformation in the book, including some inaccuracies. One example of a study I did track down (http://www.nejm.org/doi/full/10.1056/NEJM199004123221506) was led by Dr Philip Kern of Cedars Sinai Medical Center in Los Angeles, but no mention is made of him. Instead the author quotes Dr Adam Drewnowski (note the spelling, the author gives this name as "Drenowski" in the ARC I had). He is the director of the human nutrition program at the University of Michigan, but he was not involved in the study. He was merely commenting on it, which I found to be an odd way to 'reference' a study.

The conclusion of that study was that "...weight loss in very obese subjects leads to the increased activity and expression of lipoprotein lipase, thereby potentially enhancing lipid storage and making further weight loss more difficult" (N Engl J Med 1990;322:1053–9). For 'lipid' read 'fat' as in body fat. Note that the conclusion says 'potentially', and that it says nothing about causing people to put weight back on! The study also reported that "There was a strongly positive correlation between the initial body-mass index and the magnitude of the increase in lipoprotein lipase activity" so this is telling us that these study subjects, who were described in the study title as "Very Obese Humans" had more activity than would someone with a lower BMI (Body Mass Index). In short, it's something of a leap to try to correlate this with what the author tells us. It's misleading at best.

Another instance of this method of selling her approach was where I read, "Choose organic. It’s always the best way to go if you have a choice and can afford it" but she offers no reasons why. Organic food is expensive, but that doesn't mean it's better for you. If you type 'is organic food better?' into a search engine you will discover that it is far from a foregone conclusion. https://www.health.harvard.edu/staying-healthy/should-you-go-organic for example, tells us "While organic foods have fewer synthetic pesticides and fertilizers and are free of hormones and antibiotics, they don't appear to have a nutritional advantage over their conventional counterparts."

In short, if you wash your food properly before cooking or eating raw, you're getting the same nutrition cheaper. That's not clear from what the author says, and she also fails to mention antibiotics at all in this book - which is strange given how often she mentions meat consumption. This is something you ought to be cognizant of, if you're a meat eater regardless of other issues.

If you want to lose weight, consider (along with eating healthily and exercising as much as you can manage) giving-up meat altogether (do it wisely and seek medical advice if necessary), or at least consider severely cutting back on it. We in the west eat far too much and feeding grain to animals which we then eat is an appalling waste of food resources. If everyone in the west gave up about a twentieth of their meat consumption it would free-up enough grain to feed every starving person on the planet. But that's just my opinion!

An article in https://blogs.scientificamerican.com/science-sushi/pesticides-food-fears/ asks, "Are lower pesticide residues a good reason to buy organic?' and answers, "Probably not." In this article: https://www.zmescience.com/other/science-abc/organic-food-science02092015/ we read that "...researchers at Oxford university analyzed 71 peer-reviewed studies and observed that organic products are sometimes worse for the environment. Organic milk, cereals, and pork generated higher greenhouse gas emissions per product than conventional ones." So this author has not done her homework. Or she's withholding information she ought to share. Organic faming is a thirty or forty billion dollar per year industry; they're not going to tell you the truth any more than the agribusiness conglomerates are.

There are some claims in the book which are not harmful per se, but are just outright dumb! One such was this one: "People don’t usually put regular gas in their cars anymore because the new, more efficient engines require higher, purer types of gas to run efficiently." This is so wrong in so many ways that it boggles the mind. 98% of gasoline sold in the US is regular. Literally almost everyone is using it in their cars!

Just because the author may be able to afford a high-performance car doesn't mean she can extrapolate from that and make the bald assumption that everyone else is in the same boat (or vehicle!) that she is and just as well-off. Most cars use regular gasoline. In 2015, according to a study by AAA, idiots who thought their cars needed premium gasoline wasted two billion dollars putting it unnecessarily into their tanks. Not that the oil companies minded. It’s really called premium because of the premium you pay them to waste it in your car which runs fine on regular. Always go by what your car manufacturer advises as to what gas you should put in the tank. Don't ask a nurse or even a car mechanic.

Her claim that modern engines require "higher, purer types of gas to run efficiently" is complete nonsense! Higher octane gasolines are actually less pure since they tend to have more ethanol in them. Ethanol is used to raise the octane rating. The point being that if your car has a higher compression ratio, then it needs a higher octane gas. If it doesn't, it does not.

Actually modern cars tend to have sensors so that even if you're using the wrong octane, the engine can adapt (assuming it has those sensors to detect engine knocking - which can be very harmful). It just won't generate quite as much power per unit of fuel if you need the higher one and are using the lower one, but the difference in modern cars is negligible depending on how you drive, of course. Using an octane the manufacturer does not require is simply dumb. Use the one your car requires, not the one your dietician tells you to use. Hopefully you're moving to a hybrid or an electric anyway and letting oil return to being the fossil it really.

It’s misleading statements like this which cast doubt on other things the author says, especially when she says one thing and then makes a huge leaps to another assumption. For example, at one point she said, "According to the Center for Disease Control, several racial groups in the United States have especially high rates of obesity. This is a function of high famine sensitivity. They are African Americans, Hispanics and American Indians." To begin with, it’s the CenterS for Disease Control since there isn't only one. A nurse ought to know this. The author offered no reference for this study, but her claim seems to be yet another leap from facts which do not support her conclusion, especially when she lumps all American Indians, for example, into one group as though there's no difference in obesity rates between them (there is).

The fact is that in the US, African Americans are more likely to be obese than any other group, and Asians the least (http://news.gallup.com/poll/155735/blacks-likely-obese-asians-least.aspx In the BMI of 40+ category, Black Americans are twice as likely to be found. Whites and Hispanics rank about the same, very much contradicting what this author claims.

This table (https://www.kff.org/other/state-indicator/adult-overweightobesity-rate-by-re/) shows pretty much the same thing and shows American Indians. There is not a huge difference across the US as a whole. Interestingly, the author fails to mention what's happening outside the US. Although obesity is growing worldwide (about a third of the planet's human population is overweight!), the rates outside the US are about half what they are inside the US according to this table: https://www.everydayhealth.com/news/are-we-fat-think/. The only European country in the top 10 most overweight is Germany, So a really good question to ask would be, what is it Europe is doing that the rest of the world is not? Another interesting question to ask would be how does obesity correlate with access to free healthcare? None of these questions are asked in this book.

So it's probably needless to say by this point that I was not impressed with a short book sporting misinformation, which says the same things tediously over and over again, presumably to bulk up the size of the book which wastes more trees in the print version) and which has, as its only offering: eat wisely. Intelligent and well-read people have been doing that all along. Perhaps the book should have offered instead, advice to people to think about what they're eating, and to read some good science books on evolution and diet. I cannot recommend this.