If your dog eats dog food every day, especially for better quality dog food, then there is basically no need to buy any supplements or nutrients for the dog. Also, pets who are taking prescription pet foods are not needed because the food may already contain the ingredients you want to add. If your pet does need to replenish a certain ingredient, it is recommended to consult a veterinarian. It is best not to use human nutrition to feed dogs, and to make scientific choices. Because of the large differences between people and pets, the demand for various nutrients is completely different. For example, calcium tablets, calcium and phosphorus ratio is most suitable for human absorption when 2:1, but the dog's best calcium to phosphorus ratio is 1.2:1, the dog's human calcium tablets will not only have calcium absorption barriers, but also Among them, magnesium preparations can also cause urinary calculi.