green poop?!

LO has been bf up until about a week ago i started giving him 1-2 bottles of formula a day as well as still bf him, hes 5 months and because hes on solids he was having more solid poops and going every 2 days, well since he has been having formula aswell he has started pooping 2 times a day and its softer again, well i just changed his 2nd poopy diaper of the day and it was green and had some white flecks! he has had green poop before a couple of times when he was newborn but this is a first in months! it sort of looks like the newborn bf seedy poop but green?! what could this mean? thanks  
the formula is organic (apparently 99% natural ingredients) if that makes any difference.

It's probably the breastmilk that's left over, the fore milk can make the poop a bit green, I know DS gets the occasion greeny poop and it's completely normal as long as it's not a constant, there's no blood and they don't appear to be uncomfortable.

Or it could be his body adjusting to the formula? If your worried get it checked.

Quoting ßεχ™:" It's probably the breastmilk that's left over, the fore milk can make the poop a bit green, I know DS ... [snip!] ... and they don't appear to be uncomfortable. Or it could be his body adjusting to the formula? If your worried get it checked."

i thought it might be because he is getting more foremilk as he is now feeding when my boobs are engorged rather than when theyre normal.
thanks