The claim that high animal protein diets accelerate aging is based solely on studies of triple transgenic mice models of Alzheimer's disease.

“the only studies they can use to substantiate this claim are protein restriction studies done in mice who are triple transgenic as part of an Alzheimer's disease Mouse model so what we have are severely inbred mice triple transgenic they're called 3x TG crnd8 Mouse mice so these are the triple transgenic Mouse model of Alzheimer's disease and that is the only evidence they can use to substantiate the outlandish claim that a high animal protein diet can accelerate the aging process”