Consuming food from the Tamasic (static) category increases the static force in us, that force which creates inertia and stagnation and brings us closer to death.
That is why vegetarians look younger and their skin has more luster and life than that of meat-eaters.
If we see people who live their life based on flesh eating like the Eskimos and see others who live completely by following pure vegetarian diet for their whole life we will be surprised! Eskimos having no other food but only flesh have the shortest age average which could be less than half of the average of pure vegetarians like the Hunza people of the Himalayas whose age average can exceed 100 years.
Even in the animal kingdom! See the dog (Carnivore) and see the tortoise (Herbivore). Tortoise can live so long even more than 200 years while dogs usually live about 10-16 years.