Search results: dietary guidelines

I like butter as much as you do—and definitely more than margarine—but Time Magazine took it to an extreme with its cover story last year on how scientists (they are so dumb) got it wrong.

Hype alert: any time you read that science got it wrong, be skeptical.  Maybe they did, but it’s more likely that the science is still incomplete.

Time Magazine is really dug in on the butter issue.  It continues to insist that scientists were wrong about saturated fats.  Indeed, Time says, its case against saturated fats has just gotten even stronger.

On what basis?  A new study with the provocative title, “Is butter back?”   The study concludes:

This systematic review and meta-analysis suggests relatively small or neutral overall associations of butter with mortality, CVD, and diabetes.

It comes as no surprise that a single food like butter is not linked to a higher risk of heart disease. The highly respected Cochrane Collaboration’s meta-analysis of 15 randomized clinical trials concluded that replacing saturated fat (from all sources) with polyunsaturated fats lowers the risk of heart attacks and other cardiovascular events. (That finding is consistent with clinical studies on blood cholesterol levels and well-designed analyses of observational studies). One would not expect any single food to matter, since people who eat butter don’t necessarily eat an overall diet that is high in saturated fat.

No, butter is not back says the Harvard School of Public Health:

What the headlines miss is that in a meta-analysis such as this, there is no specific comparison (i.e. butter vs. olive oil), so the default comparison becomes butter vs. the rest of the diet. That means butter is being compared to a largely unhealthy mix of refined grains, soda, other sources of sugar, potatoes, and red meat…Here is the most important takeaway from this study not making headlines: Butter, a concentrated source of saturated fat, is still a worse choice than sources of healthy unsaturated fats such as extra virgin olive, soybean, or canola oils.

And just published is the Harvard group’s latest report on the diet and health of tens of thousands of nurses:

Different types of dietary fats have divergent associations with total and cause-specific mortality. These findings support current dietary recommendations to replace saturated fat and trans-fat with unsaturated fats.

Even the “Is butter back?” investigators temper their conclusions:

These findings do not support a need for major emphasis in dietary guidelines on either increasing or decreasing butter consumption, in comparison to other better established dietary priorities; while also highlighting the need for additional investigation of health and metabolic effects of butter and dairy fat.

Time Magazine:  Your science writers need to do a better job of reading the literature and putting new studies in context.

Readers: consider “scientists are wrong” (and, by implication, “we are right”) to be a red flag.  Saturated fat is one nutrient in diets that contain many, and studies that examine the effects of one nutrient without considering the total diet—and calorie balance—are highly likely to require further research.   In the meantime, enjoy butter—in moderation, of course.

First the good news

The USDA is applying its school-food rules  to child and adult care programs.  It has just released its final rule for these programs.  These go into effect in October 2017.

Previously, the USDA released standards for the Women, Infants and Children program and for the National School Lunch Program.

Now all three food assistance programs are more or less aligned with the Dietary Guidelines.

The child and adult feeding programs will specify more fruits and vegetables, less sugar and fat, but have reduce the standards for whole grain-rich products and sodium.  Presumably, this will make the rules more acceptable to people who don’t like them, of which there are many (see below).

And now the bad news

The House has released its child nutrition reauthorization bill, with the Orwellian title: “Improving Child Nutrition and Education Act.”  Like all such titles, this one means the opposite of what it says.

The House bill increases reimbursements for school breakfasts (good), but then lowers the nutrition standards for school meals and makes it harder for schools to qualify for universal free meals.  Here’s the committee’s bill summary.  And here is what the House Education and Workforce Committee says in its fact sheet.

The Hagstrom Report quotes Margo Wootan of Center for Science in the Public Interest saying that the House bill will:

• Freeze sodium reduction for at least three years.
• Require yet another scientific review of sodium.
• Weaken the whole grain standards.
• Let junk food back into schools
• Allow schools to replace fresh produce with dried (without a sugar limit), canned (without a sodium or sugar limit), and frozen fruits and vegetables, thereby allowing schools to replace fresh apples and carrots with sugary fruit snacks, potato chips, jam, or trail mix containing candy.

The Center on Budget and Policy Priorities says this bill will increase food insecurity among children.

Fortunately, not everyone in the House loves this bill.  A letter signed by 111 House members details objections.

The House will be working on this bill tomorrow.  What will the Senate do?

School food advocates: it’s time to get busy.  Here’s the list of House members.  Write to yours today!

A couple of weeks ago, I mentioned several new studies that elicited much media attention.  I am now getting around to them.

Let’s start with the article in the BMJ about newly discovered data from the Minnesota Heart Study purportedly casting doubt on the risks of saturated fat (here’s what the Washington Post said about it).

The BMJ article concluded:

Findings from the Minnesota Coronary Experiment add to growing evidence that incomplete publication has contributed to overestimation of the benefits of replacing saturated fat with vegetable oils rich in linoleic acid.

I’ve been at this game long enough to guess that any statement suggesting that everything you thought you knew about nutrition is wrong ought to raise red flags and call for more than the usual degree of skepticism.

Here are some sensible and, yes, skeptical comments about this study:

From Julia Belluz of Vox

But there were a few major problems with the research. The study involved men and women of an average age of 52 who had been admitted to a nursing home and six state mental health hospitals because they were sick. The researchers who conducted the meta-analysis note the “results are not necessarily generalizable to populations without mental illnesses or living outside nursing homes.”

Another issue: The study followed 9,423 women and men, but only a quarter of the participants followed the diets for more than a year. Altering one’s diet for a short period of time — especially in old age — would not necessarily affect one’s long-term health risks….

…Some of the biggest controversies surround saturated fats. Scientists disagree about the extent to which saturated fats contribute to important health outcomes like heart disease, stroke, and cancer. The available research does suggest, however, that there are health benefits from replacing saturated fats with unsaturated fats in the diet, and that eating lots of nutrient-poor carbs (like sugary cereals, soda, and white bread) instead of fat is a bad idea.

From David Katz, to whom I am often grateful for taking on such things, writes that this study

tested something that nobody expert in nutrition is recommending: an extremely high dose of omega-6, linoleic acid…we already got the memo that this is a dubious proposition.

With all due respect to the BMJ authors, I personally found it a bit odd that they stated the following: “A key component of dietary guidelines has long been to replace saturated fat with oils rich in linoleic acid…” The current Dietary Guidelines for Americans, let alone the far better 2015 Dietary Guidelines Advisory Committee Report, make no such recommendation. Searching for any mention of linoleic acid, I found it only in the appendices in the context of descriptions and definitions, not in any of the actionable guidance. While the current Dietary Guidelines do recommend limiting saturated fat intake, the replacement encouraged is a balance of healthful oils, such as olive, and the fats found natively in, as noted, nuts, seeds, avocado, and fish.

From Martijn Katan, the Dutch lipid biochemist who did the original work demonstrating the cholesterol-raising effects of trans fats, writes in an e-mail:

I have not had time to study the BMJ article on the Minnesota Heart Study in detail. However, some of my colleagues did, and I think that their conclusions are correct:

1. The randomized trial itself showed no effect on disease or death
2. This was to be expected because most subjects were on the diet for less than 1 year. This was due to the change in regime for psychiatric patients that took place during that period, which essentially caused the trial to fail. Lowering cholesterol by 14% for one year does not noticably affect CVD risk.
3. The relation of a larger fall in cholesterol with a larger risk of mortality did not emerge from the randomized study; subjects were not randomized to various levels of cholesterol lowering. It is an observational association. The question than arises which causes which. Various occult diseases, notably cancer, cause cholesterol to fall as the disease progresses. This also explains the association seen in observational studies between low cholesterol and cancer. That observation led me to think up in 1985 the technique now known as ‘Mendelian Randomization’ [1]. Application of that technique showed that the association of low cholesterol and cancer is indeed spurious [2].

The only new thing about the present study is that they revived the long disproved hypothesis that lowering cholesterol causes various diseases. Hundreds of thousands of patients in statin trials have proven this wrong….

[1] Katan, M.B., 1986. Apolipoprotein E isoforms, serum cholesterol, and cancer. Lancet 1, 507–8.

[2] Trompet, S.,et al ., 2009. Apolipoprotein E genotype, plasma cholesterol, and cancer: a Mendelian randomization study. Am J Epidemiol 170, 1415–21.

My bottom line on this one

It confirms the value of basic dietary advice: Eat a variety of relatively unprocessed foods, mostly plants (fruits, vegetables, grains, beans, nuts), balance calories, and enjoy what you eat!

Do this and food fatty acids will balance out too and you won’t need to give them another thought.

The moral

Whenever you read a headline suggesting that everything you know about nutrition is wrong, roll your eyes, eat something delicious, and wait for confirming studies to come along before deciding to ignore that basic advice.

I’ve just heard about the new Netherlands food guide.  It emphasizes sustainability.  According to an article in National Geographic’s The Plate,

The Netherlands Nutrition Centre says  it is recommending people eat just two servings of meat a week, setting an explicit limit on meat consumption for the first time [but see added comment below].

Here’s what the Netherlands food guide looks like.

Google translator calls this a pyramid, and explains: “Moreover, the Pyramid helps you eat more environmentally friendly broadly.”

Ours, of course, looks like this.  I’m guessing the USDA is working on a new food guide in response to the 2015 Dietary Guidelines.  These do not mention sustainability at all—the S word.

If you want to check out food guides m other countries, see FAO’s pages on food-based dietary guidelines.  You can search the site by regions and countries.  Fun!

Added comment: A reader from Amsterdam, who obviously speaks Dutch better than Google translator, and who also is well versed in the Dutch nutrition scene, writes:

Sustainability is indeed an important concern in the new Dutch food guide. However, the recommendation for meat is not ‘two servings per week’, but two servings of red meat and two servings of white meat (chicken), for a total of four per week. One serving is 100 gram or 3.5 oz. of meat. Diehards may add a third serving of red meat; 300 g of red meat (11 oz) plus 200 g of chicken (7 oz) per week is considered the absolute limit.

The fish advice has been reduced from twice to once a week because environmental concerns were thought to outweigh the small health benefit of a second weekly serving of fish.

Is fat really good or bad and, one way or the other, is it really back?

Food Navigator-USA has an interest in fats from the perspective of companies that use them in food processing.  Here’s what it says:

Fats are often classed into good, bad and ugly categories. But do consumers know which are which, and how can manufacturers help increase consumption of the healthier variety (MUFAs and PUFAs) and reduce trans- and saturated fats (and that’s assuming that saturated fats really are the bogeyman many dietitians have made them out to be)?

Protein is hot, sugar is public enemy #1, and fat is back (so the trend-watchers say). But when it comes to good, bad and ugly fats, does everyone agree on which are which? Check out our gallery of insights from consumers, industry stakeholders, and the 2015 Dietary Guidelines Advisory Committee…

Cobram Estate will enter US to fill what it says is a void in high quality, extra virgin olive oils: Award winning Australian olive oil manufacturer Cobram Estate in February will extend its reach into the competitive US market, which it says suffers a dearth of high quality, extra virgin olive oils. .. Read

Solazyme to launch algae butter in early 2016: We’re offering a hard fat from a completely new source: Solazyme is aiming to launch the latest addition to its micro-algae-based ingredients portfolio in early 2016 – an algae butter – which it says could replace hard fats such as palm oil or partially hydrogenated oils in a variety of applications spanning confectionery, bakery and spreads… Read

Do we need new labeling conventions around fully hydrogenated oils?: Fully hydrogenated oils (FHOs) do not create harmful trans-fats, and could replace partially hydrogenated oils (PHOs) in many applications. However, manufacturers are reluctant to use them because the word ‘hydrogenated’ has become “demonized”, argues one expert, who says efforts are underway to find an alternative name for FHOs that will satisfy manufacturers, consumers, and regulators.  .. Read

Judge stays Gen Mills trans fat lawsuit, but FDA has left firms exposed to civil litigation, argue attorneys: In a ruling that will be read with interest by food manufacturers worried about being sued for using partially hydrogenated oils (PHOs), a judge in California has stayed a PHO-related class action vs General Mills until the FDA decides whether certain low-level uses should be permitted… Read

JM Smucker to settle lawsuit over ‘all natural’ claims on Crisco oils made with GMOs: JM Smucker has agreed to settle a class action lawsuit accusing it of misleading shoppers by labeling selected Crisco cooking oil as ‘all natural’, according to court papers filed in New York… Read

Solazyme unveils Thrive, the first culinary algae oil in the market and its first consumer food brand: Microalgae specialist Solazyme has moved into the consumer packaged goods (CPG) arena with the launch of Thrive, a culinary oil from algae that will make its debut at upmarket grocer Gelson’s Markets in southern California this week… Read

Solazyme expands algae oil JV with Bunge to develop ‘breakthrough” products for food and animal nutrition: San Francisco-based microalgae pioneer Solazyme has expand its joint venture with oils expert Bunge to develop a “range of breakthrough oils for food and products for animal nutrition”… Read

Extra virgin olive oil exec: You wouldn’t buy rotten meat or stale bread, so why are you buying rotten olive oil?: Claims that much of the extra virgin olive oil (EVOO) sold in US supermarket is not ‘extra virgin’ at all are hardly new. But the fact that many retail buyers are effectively turning a blind eye to such widespread fraud is immensely frustrating for companies that are playing by the rules, says one industry expert… Read

FDA revokes GRAS status of partially hydrogenated oils; allows food industry to file petition to permit specific uses: As widely expected, the FDA has finalized plans to revoke the GRAS (generally recognized as safe) status of partially hydrogenated oils (PHOs) in a bid to eradicate artificial trans fats from the US food supply. However, it says manufacturers may petition the agency to permit specific uses of PHOs… Read

After all the talk yesterday about the Dietary Guidelines’ advice to cut down on sugar, and our sadness at the passing of Sidney Mintz who wrote Sweetness and Power, it’s good to consider just why we like sugar so much.  Oxford University Press has an encyclopedia on Sugar and Sweets.  But this weekend, for a short and sweet reminder, consider this contribution to the genre.

Andrew F. Smith.  Sugar: A Global History. Reaktion Books, 2015.

This is one of Andy Smith’s entries in Reaktion’s Edible series of small, brief, lavishly illustrated books devoted to a single food or beverage.

Andy discussed the genesis of this book in an e-mail memorial to Sidney Mintz.

Sid Mintz had an influence on my professional life as well. In the early 1980s I decided to use sugar as a vehicle to write a history of the world.  It was going to be a three volume work: one volume on Southeast Asia/India and the ancient world; one on the Middle East/Mediterranean in the Middle Ages/Renaissance; and one on the Americas and the modern world. I acquired and located thousands of potential books/articles and these were likely just a small portion of the material I assumed would be necessary to examine.

I continued plugging away until Sid published Sweetness and Power (1985), I assumed publishers would not be interested in another book on sugar history, so I decided to wait a couple years for it to go out of print before I resumed work on my sugar project.  So in the interim I decided to write a book on the history of the tomato, which was published in 1994. Then one topic led to another and sugar ended up on the shelve…

When I dined with Sid in 2001, I told him my sugar story, and asked him if he’d take his book out of print so I could write a sugar book. He laughed, and told me what I knew to be true– the topic of sugar history was big enough for many books.

I finally got around to writing Sugar: A Global History, which was published last spring. Rather than the three volume extravaganza I had planned, it ended up one of the shortest books I’ve ever written.

Maybe, but lots of that information got into it, wonderfully written, and beautiful to behold.

Jason Huffman, Helena Bottemiller Evich, and Jenny Hopkinson of Politico Pro Agriculture have published their end-of-year assessment of game-changing events in food and agriculture policy last year.  Here’s their list:

• Avian flu blew up the U.S. egg industry.
• The Trans-Pacific Partnership deal got done.
• The battle over the Dietary Guidelines turned even nastier.
• The FDA banned most uses of trans fat.
• The FDA said a genetically engineered fish is safe to eat.
• The EPA released its final Waters of the U.S. rule, inciting the wrath of multiple industries, states and lawmakers.
• A federal judge sent peanut company executives to jail for decades for their part in a giant salmonella outbreak.
• The FDA released major rules to promote the safety of produce and imports.
• The FDA doubled down on added sugars on food labels, proposing daily values for the listings.

I’ve discussed most of these on this site (all except Waters of the US).

I can’t wait to see what this year brings—more of the same, for sure, but what else?  Stay tuned.

Thanks to Helena Bottemiller Evich of Politico Pro for doing the homework on food issues covered by the omnibus spending deal just agreed to by the House.  Here’s my quick summary of her summary.

• GMO labels: the effort to preempt local and state GMO labeling initiatives failed as a result of the efforts of 30 representatives who opposed the measure.
• Country of origin labels repealed: the meat industry scores a win in the House vote to repeal the measure.
• Dietary guidelines: I discussed this one in yesterday’s post.  The House wants to block their release on the grounds that they are not sufficiently scientific (translation: the meat industry doesn’t like advice to eat less meat).
• The Clean Water Act: it survives.
• GMO salmon: it will have to be labeled.
• Food safety funding: up more than $132 million to $2.72 billion in discretionary funding. This is a big win for the FDA. It also proposes $1 billion for the USDA’s Food Safety and Inspection Service, also above the president’s request.
• Trans fat ban”: delayed until FDA’s formal rules go into effect in June 2018.
• School lunch flexibility: Riders allow schools to ignore whole grain requirements and block sodium restrictions pending further research.
• Chinese chicken out of schools: Prohibits purchasing chicken that was processed in China for school meals or other federal nutrition programs.
• More kitchen equipment: Schools get another $30 million for school equipment grants.
• Horse slaughter: Banned.

Caveat: this is the House deal only.  The House has to vote on the actual bill, then the Senate.  Then the two bills need to be reconciled and the President needs to sign.  Until then, everything is up for grabs.