No doubt about it, vitamins are essential for a healthy happy dog. But as is true for everything in life; too much of anything can hurt. As Paracelcus (1493-1541) postulated: “It’s not the substance that defines what is toxic and what isn’t, but the amount“. Though we do not generally consider vitamins as toxins, intake of high amounts can give unwanted results.

In February 2006, Mars Inc. recalled seven lines of its Royal Canin dog and cat foods after discovering an overage error in the formulation of its diets. Royal Canin company executives said they recalled the food as a precaution due to elevated levels of vitamin D3.

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