If children regularly suffered from calcium deficiency and were suffering ever increasing rates of calcium deficiency, it would also be news.

This is a new and novel approach that few are presently doing deliberately.

Following the doctor's advice, I've been given as a kid regularly a strawberry (or pieces, can't remember) to overcome my strawberry allergy. It worked fine, now I have zero troubles with them. I haven't researched how many allergies can be addressed this way, but for my sample size of one it just worked as the doctor said.

It's news because this is a treatment for a condition that kills people. A few hundred or so people a year in the US alone: https://health.howstuffworks.com/diseases-conditions/allergi...

>not sure why this is news.

The babies being given the treatment are allergic to peanuts. This is the opposite approach to recommendations, including in Israel.

> israel has a lower peanut allergy per capita because the most popular snack there is bamba

Infant allergy rates are similar in Israel, however a specific dip in peanut allergies in Israel was a motivating factor for looking into this approach.

>any parent can do the same by offering more food variety to their children

This can kill an infant with a peanut allergy. The science on infant allergy is far ahead of randomly experimenting with your child.

Sources:

https://www.jaci-inpractice.org/article/S2213-2198(20)30825-...

https://www.nature.com/articles/d41586-020-02782-8