Is it ok to starve your pet?
Not starve it to death, but keeping it lean in the hope of helping it to live longer. Studies have shown that starved rats for instance live a lot longer than normal rats and obese animals have the shortest lifespans.
http://www.cbc.ca/news/health/story/2009/07/15/f-calorie-restriction-lifespan-extension.html
Using Fluther
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