Currently browsing posts about: Peanuts

While in Israel, I kept hearing that peanut allergies are virtually unknown in that country.  Nobody I met knows anyone with problems with peanuts—not Jews, Arabs, children, nor adults.

The explanation?

Bamba (and its Arabic equivalent).

These things are peanut puffs.

Because they melt in the mouth, they are often fed to babies as a first food.  Apparently, babies love them.

How do they taste?  Just as you might expect (peanut-flavored straw?  peanut-flavored Cheetos?).  They are sold everywhere as a snack and I met adults who love them too.

Do they really prevent peanut allergies?  Indeed, there might be something to this idea.

Introduction of peanut products into the diets of infants at high risk of developing peanut allergy was safe and led to an 81 percent reduction in the subsequent development of the allergy, a clinical trial has found…Researchers led by Gideon Lack, M.D., of King’s College London, designed a study called Learning Early About Peanut Allergy (LEAP), based on observations that Israeli children have lower rates of peanut allergy compared to Jewish children of similar ancestry residing in the United Kingdom. Unlike children in the UK, Israeli children begin consuming peanut-containing foods early in life.

Translation:  Bamba.

These researchers also found that allergic reactions did not return even if the children in that trial stopped eating Bamba for a year.

Their studies were funded mainly by NIH and the UK Department of Health, but the researchers also report that their clinical trials unit was supported by the National Peanut Board, Atlanta, and that the manufacturer of Bamba supplied the products.  The lead author, Gideon Lack, reports holding stock in DBV Technologies, the maker of Viaskin Peanut, a product that helps people with peanut allergies tolerate exposure to peanuts.

I’d like to see these studies repeated by fully independent researchers.

In the meantime, pediatric allergists are advising parents to let their babies eat peanut butter (but not peanuts because babies can choke on them).

These allergists—and the authors of the Bamba studies—participated in an American Academy of Pediatrics consensus statement:

There is now scientific evidence (Level 1 evidence from a randomized controlled trial) that health care providers should recommend introducing peanut-containing products into the diets of ‘‘high-risk’’ infants early on in life (between 4 and 11 months of age) in countries where peanut allergy is prevalent because delaying the introduction of peanut can be associated with an increased risk of peanut allergy.

If these studies are right, introducing babies to the widest possible variety of foods as soon as they can handle solid foods (usually at 4 to 5 months) may well help prevent allergies later on.

Addition

A reader just sent another paper from the same authors, this one a randomized trial of six allergenic foods given to breastfed babies at 3 or 6 months of age.  By one analysis, allergies developed 1 to 3 years later in 7.1% of the later-introduction group and 5.6% of the earlier-introduction group—a result that was not statistically significant.  By another, allergies were much lower in the early-introduction group (2.4% vs 7.3%), especially with respect to peanut and milk allergies.  

The New England Journal of Medicine has a new study that suggests the need to rethink whether to feed peanuts to babies.

As the Wall Street Journal explains, peanut allergies can be life-threatening and they are increasing among the population.

Dr. Gideon Lack and his colleagues randomly assigned infants to be fed peanuts (really, peanut butter) until they were five years old.  The children fed peanuts had far fewer peanut allergies than those who were not exposed to peanuts.

Of the more than 500 infants who showed no signs of peanut allergies at the start of the trial, the prevalence of peanut allergies at age 5 was 13.7% in the avoidance group and only 1.9% in the consumption group (see the journal’s video for an easy explanation).

A result like this is extremely unlikely to have occurred by chance.

Dr. Lack got the idea for the study when he noticed that peanut allergies were rare in Israel.  Israeli infants are routinely offered foods made with peanuts, whereas British and American parents have been told not to feed peanuts to young children.

The authors conclude:

Our findings showed that early, sustained consumption of peanut products was associated with a substantial and significant decrease in the development of peanut allergy in high-risk infants. Conversely, peanut avoidance was associated with a greater frequency of clinical peanut allergy than was peanut consumption, which raises questions about the usefulness of deliberate avoidance of peanuts as a strategy to prevent allergy.

The implications are clear: expose young children to peanut butter (the accompanying editorial explains how to do this safely).  And to prevent choking, don’t give them peanuts until they can chew.

Other newspaper articles on this topic:

• USA Today
• Washington Post
• New York Times

OK, everyone is presumed innocent until proven guilty, and executives of the Peanut Corporation of America (PCA) are getting their day in court, accompanied by an aggressive legal defense.

According to Food Safety News, PCA’s lawyers are claiming that the government’s requests for disclosure documents are so egregious that the case should be dismissed.

Here’s a comment on the case from Eat, Drink, Vote: An Illustrated Guide to Food Politics:

Irony alert: “egregious” is precisely the word I used to describe PCA’s actions related to its Salmonella problems more than a year ago:

I’ve been following this particular food safety tragedy for several years now.  The offenses were so egregious—officials blatantly ignored positive tests for Salmonella, for example—that some kind of punishment seemed warranted.

According to the account in USA Today:

The indictment alleges that PCA officials affirmatively lied to their customers about the presence of salmonella in PCA’s products,” said Stuart Delery, principal deputy assistant attorney general.

Delery also said some officials at PCA, no longer in business, fabricated lab results certifying to customers that the products were salmonella free “even when tests showed the presence of salmonella or when no tests had been done at all.”

If you would like to catch up on this endlessly fascinating case, in which contaminated peanut butter made 714 people in 46 states sick, here’s Food Safety News’ year-old timeline of its events.

I get asked to blurb books every now and then and say yes to the ones I especially appreciate.  Here are three recently published books, well worth having and reading: 

Fred Kaufman, Bet the Farm: How Food Stopped Being Food, Wiley, 2012.

In Bet the Farm, Fred Kaufman connects the dots between food commodity markets and world hunger.  Kaufman is a wonderfully entertaining writer, able to make the most arcane details of such matters as wheat futures crystal clear.  Readers will be alternately amused and appalled by his accounts of relief agencies and the interventions of rich nations.  This book is a must-read for anyone who cares about feeding the hungry in today’s globalized food marketplace.  It’s on the reading list for my NYU classes.

Counihan C, Van Esterik P, eds.  Food and Culture,  Routledge, 2012.

Food and Culture is the indispensable resource for anyone delving into food studies for the first time.  The editors have conveniently gathered readings from classic texts to the latest writings on cutting-edge issues in this field.  Although in its third edition, the book has so much new material that it reads as fresh and should appeal and be useful to students and others from a wide range of disciplines. 

Jon Krampner, An Informal History of Peanut Butter, The All-American Food, Columbia University Press, 2012. 

Creamy and Crunchy is a fast-paced, entertaining, and wonderfully gossipy look at the history of everything about peanut butter, from nutrition to allergies and genetic modification—and with recipes, yet. Everyone who loves peanut butter will want to read this book (personally, I prefer crunchy).

I went to Mets v. Cubs at Citifield last night (Cubs 10, Mets 6, 11 innings).  While everyone else was engrossed in the game, I was distracted by the vendors.

They wore calorie label buttons!

I managed to get one.

Is anyone evaluating this public health education method?

Whether it does any good or not, I wish I could have gotten the button for peanuts: 960 calories!

A survey report in the Journal of Allergy and Clinical Immunology says that peanut allergies have tripled in the last decade.  Why?  The authors don’t really know although they speculate that children aren’t exposed to as much dirt as they used to be.

Are we really that much cleaner than we were 10 years ago?  I doubt it.  But I would very much like to know why this is happening.