 Newtid male cats are more likely to become overweight compared to non-newtid males. This is due to a decrease in their metabolic rate after being neutered, which leads them to eat more food to compensate for the lack of testosterone. Early neutering can help prevent this by allowing the cat to reach its full adult size before neutering, thus avoiding the need for additional calories. This article was authored by David Allaway, Matthew Gillam, Allison Colia, and others.