We too were recommended to start DD on solids at 4 months because of her reflux. I'm not sure if it 'helped' as such, she was still throwing up an awful lot of milk, but she did seem to keep some solids down, provided she didn't have milk too soon after them. I often found that if she had milk too soon, the food would also come up with the milk....not a nice thing when it's pumpkin or carrot - everything ended up being stained orange! Her reflux didn't really stop til 7-8 months; 3-4 months after starting solids.....so I'm not sure that was the solution at all (that being said, she loved her food right from the start - so at least she was happy lol!)