I find it mild in taste even if it has these tones in it. There are some dogs that are very strongly metallic but I only saw that in one rottweiler out of many dogs including other rottweilers. I haven't noticed any changes but I don't switch dog food that often or do regular oral. I heard humans get changes in their semen's taste by eating pineapple. Maybe dogs don't eat foods that are known to affect semen in humans?