My girls were quite poorly when I first got them. I have managed to build them up and they have really come on health wise and weight wise, their feathers are thick and shiny. I did feed them a 'nutritional supplement' bought from my local Country Store. They are fed on layers pellets which from memory is 16% protein, daily veg (cabbage, carrot, fresh sweetcorn, a little fruit and today I discovered they like cheese!!!), they also free range. It is winter here so not many bugs about at the moment. When I went the store today, the two sizes of supplement were £22.00 for organic 750g in weight and £34.00 for non organic 1.5Kg weight. I couldn't believe the price! Am wondering what supplements you use on the BYC forum. My girls are laying well at the moment, but I do feel they need a supplement to help keep up the strong shells and the lovely yellow yolks. I researched this: http://www.chicken-house.co.uk/acatalog/Poultry_Spice_450g.html Has anyone used it and if not what do you use please? I also have, but haven't used yet Gro2max probiotic, any thoughts on this would be welcome. Thank you in advance.