It was just on the radio - but the info came from a cabbie. However I’ve never heard it:
Does eating Mango Pickle make your boobs bigger?
I assume not, but where’d this old cabbie’s tale come from?
You misunderstood. Stuff 'em in your bra. Voilla! Bigger boobs. 
[preserving straight face with extreme difficulty]
cough
Er…according to this veg website, the health benefits to be obtained from consuming mangos does not include “larger mammary glands”. However, they do note:
I take this to mean that small mammary glands are caused by a virus, and that therefore applying mango juice to the glands in question, either by pouring juice on them or by attaching cut halves of fruit to each gland, a la the cocounut-cup brassiere, will kill the virus that is inhibiting their growth.
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Maybe it has come from the fact that Indians eat a lot of mango chutney and I have observed, maybe cabbies have as well, that many Indian women have large breasts?
It’s not the mango, it’s the spices in the pickle.
Fenugreek and fennel both contain phyto-estrogen, and have been used as a natural way to increase breast milk. Both are featured ingredients in those breast enhancer pills and creams on the market.
Eat enough of anything and you’ll end up with larger breasts.
Man, I love the mango pickles…but I can’t have my boobs getting bigger. My guess would be because the stuff is so damn salty it makes you retain water.