Let’s Focus on Food Allergy Prevention | Dr. Kari Nadeau | TEDxPaloAlto
23
August

By Adem Lewis / in , , , , , , , , , , , /


Translator: Hiroko Kawano
Reviewer: Tanya Cushman Can you picture a world
without food allergies? There’s a lot of work to be done, but I think we can get there with science and new ideas
through research. I’m Kari Nadeau. I’m a mother of five. I’m an allergist, a pediatrician,
an immunologist, a scientist and the director of the Sean N. Parker Center
for Allergy & Asthma Research at Stanford University. For the past 25 years, I have seen the impact
of food allergies in patients’ lives. I am also witnessing the possibility
of a world without food allergies, through science. Food allergies are rising. In this family that’s multi-generational, there’s a chance that one in four people will have a food allergy
at some point in their lives. That’s a 300% increase
compared to 20 years ago. In fact, in the United States, two children out of every classroom
have food allergies. It’s not just a childhood disease though; it’s also an adult disease. It’s thought that 4% of all adults
in the United States have food allergies. That’s equivalent to a stadium
of about 40,000 people, about 1,600 of them
will have food allergies. That’s a whole section of the stadium. Moreover, of children and adults
with food allergy, 25% will have a severe allergic reaction
at some point in their lives. And that’s increased
if someone has multiple food allergies. Dr Ruchi Gupta in Chicago has studied how much the cost
is to the US healthcare system. It costs 25 billion dollars a year
to take care of people with food allergy, because of emergency room visits, because of special diets, and because of days off from work. With that in mind, that’s equivalent
to 400,000 research grants to 400,000 researchers to be able to try to find
the cause and the cure of food allergies. I’m sure all of you are aware of the restrictions,
in schools as well as labeling laws, due to food allergies. Those are only going to increase because the rate of milk
and peanut allergies, for example, is increasing and doubling every 10 years. For some tree nuts, it’s tripling. Those statistics bother me. They motivate me. And importantly, patients’ stories will ensure to inspire us. Years ago, I took care of a family
with food allergies. The mother came to me
with her identical twins. And the identical twins, they had similar allergies,
to milk and cashew, but they also had different allergies: one to wheat and one to peanut. So the mother asked me to be able
to think about diagnosing them through a good, gold-standard
diagnostic technique, which is called a food challenge. She also told me that in her family,
she did not have any allergies, but her husband had hay fever. So I explained that in a food challenge, we slowly, in a clinic, increase the dose
and watch for an allergic reaction. And that allergic reaction can actually represent
the immune system getting confused and thinking that the food
is a danger signal. Just like we get a bee sting, and we have redness
and hives and wheezing and a potential blood-pressure drop; the same can happen with food allergies. So her sons went through
the food challenge, and they had a severe allergic reaction. And that was very unnerving,
very anxiety provoking. And so the mother asked, “What can I do? What can I do to prevent this
from happening again in my children? And importantly, why are food allergies
rising in this world?” And so I explained that science has shown that it’s a blend
between genetics as well as environment and how that impacts the immune system. Importantly – as like this mom – no parent should have to live with the fear and the disabling
feature of food allergy. No patient should have to live
in fear of eating food at school, at home, in social situations. Because of this, I made it my work to be able to try to solve
the food-allergy problem. Fortunately, many people are looking at prevention. There is a pathway, thanks to science, to be able to think
about that possibility. The power of prevention can begin at home. There are many scientists looking
at the potential causes of food allergy to be able to think
about ways to prevent them. And there’s not just one cause. It’s what we call multifactorial. In fact, it’s probably due in a large part
to our changes in our modern life. Compared to years ago,
we don’t live as much on the farms. We don’t get exposed to animals. We don’t have a diverse diet
for our infants as much anymore. And we don’t spend as much time outdoors. Because of that, we are now looking at ways
to understand the factors that can be decreasing
our risk for food allergies. My colleague Dr Katie Allen in Australia
studies this in 15,000 families because the rate in Australia
of food allergy is one in eight children. She has now found, as well as Dr Carlos Camargo in Boston and Dr Corinne Keet
in Johns Hopkins University, that there are six “D’s,”
and there are probably more, but I’ll talk about them now. We think that being around
in dirt is helpful; we think that taking care of dry skin
with good creams and good emollients is going to help decrease
your risk of food allergies; as well as diversifying your diet
early and often in infancy. Healthy levels of vitamin D. Perhaps getting a dog early in life as well as using
less detergents for infants. We think all will decrease
the food-allergy risk. That’s encouraging news. Science performed
by Dr Donald Leung in Denver, Helen Brough in the United Kingdom, Julie Parsonnet
and Scott Boyd at Stanford, and through a consortia
at the National Institutes of Health have all designed ways to test how these factors
are associated with each other. Importantly, if you have dry skin or eczema –
that can crack the skin. And in infants, if they have tiny amounts of food allergen
exposed to their skin over time, the immune system gets confused again. It thinks that’s a danger signal, and the person can start having
a food allergy. But that’s counterbalanced
with the GI tract. If you actually eat the food orally, that can train your immune system
to protect against that danger signal. And so at the age
of about four to six months, when you’re introducing
solids to your baby, many scientists have found that a diverse diet can help reduce
the risk of food allergies. Dr Gideon Lack,
for example, went to Israel and realized that the children
that were eating Bamba actually had a lesser rate
of food allergies. And so he designed a study
in hundreds of infants to be able to introduce a diverse diet. He specifically also looked
at introducing peanuts, and what he showed
was that the rate of peanut allergy in those children that were exposed
to peanut early through their diet had a fivefold decreased risk
for food allergy. And he found it to be safe. That’s a radical idea. And compared to
when I was raising my children, in the year 2000s, I was being told to avoid, avoid, avoid, delay the introduction of milk
and peanuts and shellfish until they’re at three years of age. Now we’ve turned a 180,
and in fact, it’s the exact opposite – that we actually want
to diversify that diet. The National Institutes of Health
has come out with guidelines now to be able to help us
introduce peanut to infants to be able to try to reduce
the risk of peanut allergy. That’s a radical new idea. That’s revolutionary. But it’s disruptive, and it could
make us feel uncomfortable. However, it could benefit us greatly. So let me give you the recipe for being able to try
to prevent food allergies. Diversify the diet, take care of dry skin
with cream and emollients, roll around in the dirt, get healthy amounts of vitamin D, and perhaps that will decrease
the risk of food allergy. No family should live with the burden
of restrictions and food allergy. What I’ve told you today does not just stay
in the lab and the clinic. You can do this at home. Let’s go back to the family with twins. When the mother
wanted to have a third child, she came to my clinic with the baby, and she said, “What can I do to prevent
food allergies in their sister?” And she went home, talked to me, bought a dog, (Laughter) took care of the baby’s dry skin
very well with creams and emollients, introduced a diverse set of foods
between the ages of four and six months, when the child was eating solids. And that child is now five years old
and does not have food allergies. And you can do this too. You can now be part
of science and research to be able to try
to prevent food allergies through new ways and new ideas. Thank you. (Applause)


53 thoughts on “Let’s Focus on Food Allergy Prevention | Dr. Kari Nadeau | TEDxPaloAlto

  1. Nice๐Ÿ‘Œ๐Ÿ‘Œ๐Ÿ‘Œ๐Ÿ‘Œ๐Ÿ‘Œ๐Ÿ‘Œ๐Ÿ‘Œ๐Ÿ‘Œ๐Ÿ‘Œ๐Ÿ‘Œ๐Ÿ‘Œ๐Ÿ‘Œ๐Ÿ‘Œ๐Ÿ‘Œ๐Ÿ‘Œ๐Ÿ‘Œ๐Ÿ‘Œ๐Ÿ‘Œ๐Ÿ‘Œ๐Ÿ‘Œ๐Ÿ‘Œ๐Ÿ‘Œ๐Ÿ‘Œ๐Ÿ‘Œ๐Ÿ‘Œ๐Ÿ‘Œ๐Ÿ‘Œ๐Ÿ’๐Ÿ’๐Ÿ’๐Ÿ’๐Ÿ’๐Ÿ’๐Ÿ’๐Ÿ’๐Ÿ’๐Ÿ’๐Ÿ’๐Ÿ’๐Ÿ’๐Ÿ’

  2. I learn English , and I want speak in English fluently and I wand look out for good job with big money . I am 15 yers old . Today I learn phrasal verb " get " ะŸะพะถะตะปะฐะนั‚ะต ะผะฝะต ัƒะดะฐั‡ะธ ๐Ÿ˜„ I am from Russia

  3. India India India India India India India India India India India India India India India India India India India India India India India India India India India India India India India IndiaIndia India India India India India India India India India India India India India India India India India India India India India India India India India India India India India India IndiaIndia India India India India India India India India India India India India India India India India India India India India India India India India India India India India India India IndiaIndia India India India India India India India India India India India India India India India India India India India India India India India India India India India India India India IndiaIndia India India India India India India India India India India India India India India India India India India India India India India India India India India India India India India IndiaIndia India India India India India India India India India India India India India India India India India India India India India India India India India India India India India India IndiaIndia India India India India India India India India India India India India India India India India India India India India India India India India India India India India India India IndiaIndia India India India India India India India India India India India India India India India India India India India India India India India India India India India India India India IndiaIndia India India India India India India India India India India India India India India India India India India India India India India India India India India India India India India IndiaIndia India India India India India India India India India India India India India India India India India India India India India India India India India India India India India India IndiaIndia India India India India India India India India India India India India India India India India India India India India India India India India India India India India India India India

  4. Good to see this video,I'm having severe allergy over wheat , and it's deadly thing to me .Till now I'm dare to have it again in my life

  5. FOOD ALLERGIES ATTACK ATTACK THE FOOOOOOD COMPANIES THEY ARE ALLLLLL OBOUT PROFFIFFFFFITTTT WEEEE KNOW THISSSSSS FEEEEEDDING US SH……..T C MONE

  6. yeah.. it's not universally work , maybe some type of plants/animals is not suppose to eaten by human

  7. I am allergic to the strangest foods all of a sudden i.e. checked, tuna and almonds. I can eat other fish and nuts. Sooo interesting! Pescatarian lifestyle is now my world but it's fun

  8. I'm northeast indian and I'm allergic to Egg, Fish , some dairy products and Ghee.. food allergy is a pain mentally and physically.. I'm glad to see this Video ๐Ÿ™‚

  9. Most of these things are what my grandma did with her children and what my mom did with me and my brother, all this seems so obvious for me

  10. ๐Ÿ™ƒ
    On speed I eat one small sandwich a day and donโ€™t want more…
    ๐Ÿ”ถ
    Is that an allergy to food?!
    ๐Ÿ™‚

  11. I'm surprised nothing was mentioned about our food being poisoned with chemicals. Maybe our bodies are trying to tell us not to eat that food for a reason..

  12. Maybe I am not about the theme but she has an excellent American accent which is easy to understand and her manner of speaking is perfect.

    What about the food allergy I think it's more a psychosomatique issue and has a very unique nature. It takes place more with the age in my case.

  13. I don't think that I have an allergy of food but I am quite sure that I have an allergy of strong smell.. once I have used almond oil on my hair and from this smell I started to vomit.. I'm 17+ yrs old.. I have no idea about my problem.. may u tell me?? Thanku

  14. Is there scientific testing that shows us to eat & drink for a thriving LIFEstyle in which we may desire?

  15. How is this technique 'radical' and 'revolutionary' when this is exactly what we did with our kids growing up in the 1980's ???

  16. I am surprised that this lady being from California does not know about plant-based diet in the overwhelming scientific evidence proving that animal products of all kinds are not for human consumption very surprised that she does not know about dr. Greger and many other doctors that are currently going around the world and proving with evidence that animal protein found in milk eggs and meet and any dairy product is not for us humans that's why many people would be breaking out and getting many allergic reactions and this person is very educated but in the same time does not mention any of the scientific findings of the impact of animal products in human bodies.

  17. I asked my old relatives, friends, persons I know. They did not knowed alergies are also from food. I mean, yes, strawberries gave you sometimes a small alergic reaction, eggs are (in excess) affecting the liver, but alergies like honey, bread, or any aliment were unknown.
    Why do you not ask: The human are eating same food from thousands of years and suddenly, now, decided that is fashionable to have an alergy at it. Are you sure that we are not reacting at something else? Oh, sorry, the gluten, sugar, milk, eggs, are BAD, not as good and clean like the hormons in the animals we eat (chicken, beef, pork), or, like the GMO Monsantoยดs healty vitamins we find in the (now sterile) vegetables, fruits, cereals.
    HOW the human race managed to live until the present days without those goodies?

  18. Son has severe food allergies. Did all that you recommend except diverse food because he was so fussy. Wish I had really pushed a variety of foods when he was too small to protest.
    Can we overcome this now that he is older?

  19. Food is so much processed today, that food allergies are certain! The way we cook, the way we store, and the way we feed, all makes up a part! Coming back to the base from where we started isn't possible! Modern day dairy is open to all! Then comes the culprits like vegetable oils, trans fats, processed sugar, preservatives, and none the less…. the packaging! The damn stuff is packed in the so called PLASTICS! Organic food is taken for granted, because just a drop cannot clean the ocean! The more we go into the Science, the dark side is, the more we make these byproducts, that are later realised to be harmful! Science is imperative, but Food should be kept simple! Probably, that would be the end to most of the allergies!!!

  20. The major causes are more than likely all the chemicals, antibiotics, growth hormones, pesticides, herbicides, GMO, etc. in our food, air, water and earth. This was not addressed in Dr. Nadeau's presentation.

  21. I think Developed Nation are using more chemical in their food compare to other poor countries….Why don't they spread awareness for it in their nations ?

  22. Honeslty I've exwpected more from this. And what about food intolerance? Nobody is talking about that.

  23. My grandma began to develop milk allergies and because she loved milk she refused to give it up. She would drink a little bit everyday and as time passed she would add more little by little. She is now not allergic to milk. Odd but worked. Oh and when pregnant they told me don't eat this or that I didn't listen. My kids have zero allergies. Yes I ate fish a lot

  24. Yes: enviroment. The first and foremost cause of food allergy are the food companies. They sacrifice their consumers health on the altar of profit. There are many revealing documents about it yet they can continue without distruption.

  25. So if I never introduce my children to meat and dairy.
    They may be more likely allergic to it later on.
    Sounds great to me.

  26. "Should have to" she used this structure two times and I am wondering whether it is correct or not, never faced that structure tho.

  27. Allergies arenโ€™t rising, back in the day it was more likely for someone to just die because doctors and nurses didnโ€™t know what was wrong with them or how to fix it , now they have ways to avoid this.

  28. god that introduction makes you think that was going to be someone who knows there stuff no disrespect well done for all they achievements but do they titles mean anything ?the main cause of allergys is not genetic or immune its life style …for example fad diets and jumping on the new thing to be cool,,,, 1 in 100 people for example in britian are actually celiac…and like America and and Australia the number are growing because you are glorifying it…god bless! people with a real allergy because you are making it more expensive for them and at a bigger risk.."the whole opinion of they cant all be celiac"…is risk enough if your out for dinner being served food…so as this problem spirals out of control you are doing a safe test in a lab to slowly introduce a trace back into someones diet…maybe you should be questioning the 400,000 grants you want funded ? those statistics bother me also so America and Australia have been doing the g,f diet before us and we are definitely on the rise in great Britain …the story of the twins that's awful I agree but think of all the babies being born today whos parents aren't even going to introduce any allergens at all that is a scary thought …food challenge?!!! your going to need a lot of people on standby when this starts…brilliant name dropping of all these fantastic people ,I'm sure that the new ideas and ย scientific breakthrough??? was there all along its called common sense…ask any of the older generation …a new opinion from someone that is supposedly trained and knows what they are talking about got listened to by all the other goons with the same degree in self importance (qualification,name drop alert!) yawn and social media ?fads however you put it has gone mad…the entire health organisation should be apologising for making a mistakeย by saying you shouldn't introduce babies to food early on etc,not you though I'm sure after all you will be quite a sensible parent of five and probably ignored your own medical advice you dished out to your patients! I love ted talks listen to them all the time but this has annoyed me so much…want a cost effective soloution by everyone a farm animal…chicken per say,immune system covered eggs introduced at a young age, self suficiant and when you know your going to be just fine! shock horror …plate that bad boy up n get the whole family to tuck right in !!! I was going to say this talk shouldn't be on here ,but you know what like a cleary labelled ingredient in 20years time we will know exactly what this contains NONSENSE cheers!

  29. I am allergic to tuna, beef, pork, dairy, wheat, corn, potato, garlic, onion, and Brewer's Yeast (mold); Brewer's Yeast is in alcohol, vinegar, mushrooms, dried fruit…
    Two years later without these foods, I feel amazing but it is hard.

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