> In the first camp — the randomized trial camp — we have one very large-scale study from Belarus. Known as the PROBIT trial, it was run in the 1990s and continued to follow up as the children aged.
And then later
> The researchers analyzed the impacts of breastfeeding on allergies and asthma; on cavities; and on height, blood pressure, weight and various measures of obesity. They found no evidence of nursing’s impacts on any of these outcomes.
If you go to the PROBIT trial, you see it clearly stated that they did find an impact from nursing:
> Conclusions: Our experimental intervention increased the duration and degree (exclusivity) of breastfeeding and decreased the risk of gastrointestinal tract infection and atopic eczema in the first year of life.
Apparently so, did you read the post you are criticizing?
> This is not to say that there aren’t some benefits to breastfeeding. In poor countries where water quality is very poor, these benefits may be very large since the alternative is to use formula made with contaminated water. In developed countries — the main focus of the discussion here — this isn’t an issue. Even in developed countries, there are a few health benefits of breastfeeding for children in the first year of life (more on this below).
https://fivethirtyeight.com/features/everybody-calm-down-abo...