Vegetarian dog food

Unlike cats, dogs can digest and use plant proteins well, so a rigorously formulated complete vegetarian food can meet a healthy adult dog's needs. The rigour is the point: nutrients that arrive easily via meat must be deliberately engineered into a meat-free recipe. Choose established complete recipes from transparent makers, and involve your vet in the switch.

It can be, with the same caveats as vegetarian feeding drawn tighter: every nutrient of animal origin has to be supplied another way, so formulation quality is everything and corner-cutting shows up in the dog. The long-term evidence base is thinner than for conventional diets - an honest unknown. Complete recipes only, reputable makers only, vet in the loop.

Mostly legumes and their concentrates - peas, lentils, soya - plus potato protein and increasingly clever additions like algae for omega-3s. Good meat-free recipes declare their protein sources and amounts plainly. As ever, vague labelling defeats the purpose: a maker selling a specialist diet should be specialist-level transparent about what is in it.

This is the highest-stakes version of the question, because growth magnifies every formulation error - calcium, protein quality and energy all have tight tolerances in puppies. A meat-free diet for a growing dog needs a complete growth-rated recipe and professional guidance, not optimism. Talk to your vet or a qualified canine nutritionist before going down this road.