https://www.researchgate.net/publication/15882115_Utilization_of_L-alanine_and_L-glutamine_by_lactating_mammary_gland_of_the_rat_A_role_for_L-alanine_as_a_lipogenic_precursor

Combination of l-alanine and glutamine are precursor lipogenic ( conversion of sugar to fatty acid) in adipose tissue. Interesting... in theory Twinkies, ding dongs, etc= boobs :p.

I m sure its not that simple...

L-alanine is also an amino acid that is found in breast milk.

https://en.m.wikipedia.org/wiki/Lipogenesis

A bit about lipogenisis