In my friends it seems the opposite. Small or moderate breasts, easier time nursing. Very large breasts, harder to nurse and less milk. But everyone is different.

I went from a c cup to a double D and sadly this did not translate into more milk. Had to supplement my first child because he wasn't gaining. I pumped very little--1 to 2 oz. at at time using a professional grade double pump.

when I saw the headline, I wondered if this was a troll getting his jollies! But seems not...

so, I'd say no.. very small here (less than AA) but lots and lots of milk.. I think there are many many factors that go into this, but breast size isn't one..