Thankyou BW and Hansie, I'm using Bellamy's (which is an organic product) at the moment, but he is feeding very frequently, every 2 hours sometimes or less, which seems alot with formula. This is our first bub, 4 weeks old tomorrow, all very new and exciting. Some family have suggested that maybe this formula doesn't have enough "guts" to it, this is why he is feeding so frequently???? He does like Nan also, just thought the organic product may have been more natural, which we really like, but it's all about our little son that he is happy and getting enough. Lizzy