Vet’s advice Neil McIntosh SG’s gundog health expert
No. Furthermore, garlic and other members of the allium family, including onions, contain thiosulfate, which is toxic to dogs but not to humans.
Thiosulfate causes oxidative damage to red blood cells, resulting in haemolytic anaemia. Remarkably, the damage done to haemoglobin results in the formation of structures called ‘Heinz bodies’.
Cooking does not reduce the toxicity of garlic or onions. But I am guessing from your question that you are having a problem with fleas. At this time of year, a wee