This talks about microbiome diversity, not related to breastfeeding:
https://www.nature.com/articles/s41467-020-18871-1
My personal take on it is that breastfeeding/pumping probably do contribute to microbiome diversity, but so do a lot of other things. So if you can breastfeed or pump, and it works for you and your life, great! But if you don't want to/can't, then there are still other things to do to help your babe have a diverse microbiome, like feeding them lots of fruits and veggies and less sugary drinks.
----------------------Excerpt:
For measured lifestyle factors, we found strong evidence for associations between physical activity and microbiome diversity, with both the frequency (i.e., number of days per week) and duration of physical activity positively correlated with microbiome diversity. Eating more servings of fruits, vegetables, and cruciferous vegetables was also positively correlated with diversity, while increased consumption of sugary drinks was negatively correlated with diversity. Lastly, indicators of poor bowel health, such as the weekly frequency of diarrhea, nausea, and acid reflux, were negatively associated with microbiome diversity (see Supplementary Data 2 for a full list of association results).
https://www.nature.com/articles/s41467-020-18871-1
My personal take on it is that breastfeeding/pumping probably do contribute to microbiome diversity, but so do a lot of other things. So if you can breastfeed or pump, and it works for you and your life, great! But if you don't want to/can't, then there are still other things to do to help your babe have a diverse microbiome, like feeding them lots of fruits and veggies and less sugary drinks.
----------------------Excerpt:
For measured lifestyle factors, we found strong evidence for associations between physical activity and microbiome diversity, with both the frequency (i.e., number of days per week) and duration of physical activity positively correlated with microbiome diversity. Eating more servings of fruits, vegetables, and cruciferous vegetables was also positively correlated with diversity, while increased consumption of sugary drinks was negatively correlated with diversity. Lastly, indicators of poor bowel health, such as the weekly frequency of diarrhea, nausea, and acid reflux, were negatively associated with microbiome diversity (see Supplementary Data 2 for a full list of association results).