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  1. #1
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    Pediatric allergist traces 'mystery' anaphylactic reactions to pea protein

    Pediatric allergist traces 'mystery' reactions to pea protein — an increasingly popular ingredient
    Melanie Glanz, CBC News
    May 2, 2019

    Pea protein is often used in vegan cheeses and yogurt, and as an alternative to meat protein

    As a pediatric allergist, Dr. Elana Lavine often advises parents to avoid peanuts, eggs and seafood. Now, she's warning them that allergies can also be triggered by "pea protein" found in a growing number of foods.

    Lavine described what happened to a two-year-old patient after eating non-dairy yogurt.

    "When given the yogurt, they had a full-blown anaphylactic reaction in the aisle of the grocery store," she said.

    The girl has an allergy to peanuts and tree nuts, but her parents had no idea what caused the yogurt reaction.

    Neither did Lavine. But following the yogurt mystery, she learned of other patients who'd had unexplained reactions. She gathered details of their cases and eventually identified the culprit: pea protein.


    Split peas are a type of field pea grown for drying. They contain pea protein, an increasingly popular substitute for meat protein, and a potential allergen. (Craig Chivers/CBC)

    The protein, which is extracted and concentrated from peas, is popping up in all sorts of products on grocery store shelves, often as a substitute for meat protein. It's used in vegan cheeses, yogurts and milk substitutes.

    Lavine estimated 95 per cent of patients with peanut allergies can tolerate peas. But for the other five per cent who can't handle exposure to pea protein, it can be life threatening.

    Lavine was so concerned about the reactions her patients described, she wrote a case study about them in the Journal of Allergy and Clinical Immunology: In Practice. The paper warns parents and doctors to be vigilant.

    Producers consider pea protein to be a cheap, sustainable alternative to meat protein.

    But pea protein lacks one essential amino acid needed to make it a complete protein, said Alison Duncan, a professor of human health and nutritional sciences at the University of Guelph. A complete protein contains all nine essential amino acids that humans need.

    "There's no doubt that the pea protein extracts are high in protein," said Duncan, a registered dietitian. "It's not a so-called complete protein like soy is."

    Pea protein is usually derived from yellow peas. To extract the protein, the pea is mixed with water. The fibre and starch are then removed, leaving only the protein. When the protein powder is added to foods, it's in a concentrated form.

    "It concentrates the protein from a large number of peas into a small amount," Lavine said, and that concentration can cause a much more severe reaction than eating plain peas.


    Pea protein is listed in the ingredients but it does not have to be flagged as an allergen in Canada. (CBC)

    The protein is also being added to some meat and dairy products to boost the protein level, said Rotimi Aluko, a food chemist and professor at the University of Manitoba.

    The use of pea protein allows these companies to increase the protein levels in their products while keeping their costs down, Aluko said.

    "Pea protein has very superb function that allows the manufacturer to formulate delicious foods, and that is why it is a major component of your Beyond Burger, the plant imitation of a hamburger," he said.

    James Cameron promotion

    The Prairies are poised to become the pea protein capital of the world, processing companies say.

    Environmentalist and Hollywood director James Cameron and his wife, Suzy Amis Cameron, have invested in an organic pea-processing plant in Saskatchewan. The French company Roquette has also announced it will build the world's largest pea-processing facility near Portage la Prairie, Man.

    On a trip to a grocery store last week, CBC News found pea protein in frozen chicken strips and deli meats.

    Mary Campagna of Woodbridge, Ont., cooks most foods from scratch and is careful to scan ingredient lists because her 10-year-old daughter, Vanessa, is allergic to peanuts, most beans and peas.

    Campagna recalled what happened when she brought home pepperoni to make pizza four years ago.

    "Vanessa was eating a piece of pepperoni and then putting one on the pizza and suddenly her face swelled up."

    Campagna was able to track the source of the eye allergy reaction back to pepperoni that contained pea protein.

    'Under-recognized'

    Unlike nuts, pea protein is not labelled as a food allergen in Canada. It's still too early to know how common the pea protein allergy will prove to be, Lavine said.

    She wants to raise awareness of pea protein as a "relatively under-recognized" source of allergy.

    "In the past, if a child has anaphylaxis to food there's a certain short list of foods that might be able to explain it," she said.

    Now, physicians might need to widen their search of foods for "mystery anaphylaxis."

  2. #2
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    Re: Pediatric allergist traces 'mystery' anaphylactic reactions to pea protein

    These points need to be emphasized:


    1. The protein, which is extracted and concentrated from peas, is popping up in all sorts of products on grocery store shelves, often as a substitute for meat protein. It's used in vegan cheeses, yogurts and milk substitutes.



    2. The protein is also being added to some meat and dairy products to boost the protein level, said Rotimi Aluko, a food chemist and professor at the University of Manitoba.

      The use of pea protein allows these companies to increase the protein levels in their products while keeping their costs down, Aluko said.

      "Pea protein has very superb function that allows the manufacturer to formulate delicious foods, and that is why it is a major component of your Beyond Burger, the plant imitation of a hamburger," he said.




    3. On a trip to a grocery store last week, CBC News found pea protein in frozen chicken strips and deli meats.

      Campagna recalled what happened when she brought home pepperoni to make pizza four years ago. "Vanessa was eating a piece of pepperoni and then putting one on the pizza and suddenly her face swelled up." Campagna was able to track the source of the eye allergy reaction back to pepperoni that contained pea protein.

  3. #3
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    Re: Pediatric allergist traces 'mystery' anaphylactic reactions to pea protein

    Summary: Vegan attempts to replace real meat bad

    More reasons to remain a true carnivore.

    Being from Quebec though I do need my pea protein but in a more balanced and natural way: Habitant Pea Soup thankfully is available here in Manitoba.
    ​"A real friend is one who walks in when the rest of the world walks out." ~ Walter Winchell

  4. #4
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    Re: Pediatric allergist traces 'mystery' anaphylactic reactions to pea protein

    Similarly, I used to be vegan years ago but decided life was worth living
    “Out beyond ideas of wrongdoing and rightdoing there is a field. I'll meet you there.” ~ Rumi

  5. #5
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    Re: Pediatric allergist traces 'mystery' anaphylactic reactions to pea protein

    Then why you always posting about cooking or eating vegan stuff? Lol
    ​"A real friend is one who walks in when the rest of the world walks out." ~ Walter Winchell

  6. #6
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    Re: Pediatric allergist traces 'mystery' anaphylactic reactions to pea protein

    Can't eat cheese and eggs all day
    “Out beyond ideas of wrongdoing and rightdoing there is a field. I'll meet you there.” ~ Rumi

  7. #7
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    Re: Pediatric allergist traces 'mystery' anaphylactic reactions to pea protein

    How about trying some of the real meat all that stuff is trying to impersonate?
    ​"A real friend is one who walks in when the rest of the world walks out." ~ Walter Winchell

  8. #8
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    Re: Pediatric allergist traces 'mystery' anaphylactic reactions to pea protein

    I'm just trying to fit in with all the cool vegan hipsters

    But I actually do like the fake burgers that taste more like a veggie burger than the real thing. Except the veggie burgers tend to be mushy (to extremely mushy).

    The new Beyond Meat burger and supposedly the Impossible Burger are not mushy at all (thanks to all the extra processing, etc).
    “Out beyond ideas of wrongdoing and rightdoing there is a field. I'll meet you there.” ~ Rumi

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