Doesn't look as if there is enough difference to make your dog lose weight or to worry about keeping your dog on adult food
Senior
Ingredients

Chicken Meal* (min 23%), Whole Grain Rice (min 23%), Whole Grain Maize, Dried Brewers Yeast, Beet Pulp, Chicken Fat*, Fresh Chicken (min 5%), Egg Powder, Fish Meal*, Linseed, Fish Oil*, Minerals, Vitamins, Nucleotides, Prebiotic FOS, Prebiotic MOS, Cranberry Extract, Chondroitin Sulphate, Glucosamine Sulphate, MSM, Yucca Extract, L- Carnitine. * Preserved with mixed tocopherols and rosemary extract.
Typical Analysis

Protein 22%, Oil 12%, Fibre 2.75%, Ash 5.5%, Moisture 8%, Omega6 2.7%, Omega3 0.39%, Vitamin A 15000 IU/kg, Vitamin D3 1000 IU/kg, Vitamin E 150 IU/kg, Calcium 1%, Phosphorous P 0.75%, Copper 18 mg/kg (as Cupric Sulphate).

Adult
Ingredients

Chicken Meal* (min 27%), Whole Grain Rice (min 26%), Whole Grain Maize, Chicken Fat*, Beet Pulp, Fresh Chicken (min 5%), Dried Brewers Yeast, Egg Powder, Fish Meal*, Linseed, Fish Oil*, Minerals, Vitamins, Nucleotides, Prebiotic FOS, Prebiotic MOS, Cranberry Extract, Chondroitin Sulphate, Glucosamine Sulphate, MSM, Yucca Extract. * Preserved with mixed tocopherols and rosemary extract.
Typical Analysis

Protein 25%, Oil 15%, Fibre 2.5%, Ash 7%, Moisture 8%, Omega6 2.53%, Omega3 0.37%, Vitamin A 15000 IU/kg, Vitamin D3 1000 IU/kg, Vitamin E 100 IU/kg, Calcium 1.1%, Phosphorous P 0.75%, Copper 20 mg/kg (as Cupric Sulphate).