Can't see why the benefits of breastfeeding would be exaggerated? Why would that happen? Who does that benefit, just don't see the point.
It's not like anyone stands to make profits by talking up the benefits of breastfeeding. Although there was some interesting recent research by UNICEF UK that suggests if more women were supported to breastfeed the NHS could save 40 million pounds.
https://m.guardian.co.uk/ms/p/gnm/o...stfeeding-nhs-savings-unicef&cat=lifeandstyle
There are a fair number of problems with that "study". Again, FFF for one has already said it (better than I could) so here's the link:
https://www.fearlessformulafeeder.com/2012/10/the-two-headed-chimera-of-infant-feeding-studies/
As for no-one making profit from BF'ing... seriously? Just off the top of my head... Boppy, Lansinoh, Ameda, Medela (or any pump manufacturer,
especially in the USA where mat leave is so short), any company who makes nursing bras, or nursing tops, lactation consultants, organisations who charge for breastfeeding classes... Need I go on? Just because it's not those big, evil formula companies who are making the money from it, doesn't mean it's somehow a totally squeaky-clean, "no money involved" affair. And yes, there are plenty of women who get by without involving any of the above. But there are a heck of a lot of women who do use at least one of the things I've mentioned. The companies who make these products or provide these services sure aren't doing it out of the goodness of their collective hearts...
As for why have the benefits been exaggerated, well, I'm not sure anyone knows. The WHO and various governments around the world like to be seen to be promoting "health" in general, and perhaps seems like a fairly easy bandwagon to jump on? Make a lot of fanfare about how breast is best (as "proven" by study X, Y, or Z, quick, ignore the fact that those studies have methodological holes the size of a moon crater) and it makes it look as though the Governments are doing something positive. The fact that they then don't back up this fanfare with meaningful, genuine support, regardless of post-code, time of birth, or whatever, doesn't matter to them. They can still tick that box which says the Mum was breastfeeding when she left the hospital, and that's them happy.
I sometimes think the benefits are exaggerated through pure ignorance, or a lack of ability to understand how to translate "risk" into real terms. You get given a percentage of how much more or less likely something is to happen to a BF baby or a formula-fed baby, and people start shrieking about how terrible formula is. If the media outlets who reported these studies had any staff with scientific/research training, then they'd know that it's not as cut and dried as that. So yes, a study may show that formula fed infants are X percent more likely to get an ear infection. But out of 1000 BF babies and 1000 formula-fed babies, that might only mean that 2 BF babies will get ear infections and 3 FF babies will.
Anyway. I am rambling when there is housework to do. Seriously, read the Momma Data blogs. She explains it far better than I can.