Yes, spoonfuls are a great dose for a dog. I weigh about 230 lbs. and take a spoonful, basically as a substitute for a multi-vitamin. For another example, racehorse trainers see noticeable results with small scoops like 1/4 or 1/3 of a cup daily. Small doses will make a difference because what you are after are the amino acids and other trace minerals to fill any voids in the nutrition intake from the base diet.