Cats will generally overfeed themselves (there are always the exception), from the Association for Pet Obesity, in 2016
An Estimated 59% of Cats and 54% of Dogs in the United States Are
Overweight or Obese.
A large portion (if not all) of a cats diet should be wet food, since wet is expensive most owners will supplement with dry to cut the cost. Depending on the food you choose and how much your pet weighs he should be fed a specific amount daily. When starting a new food weigh your pet every 2 weeks to ensure he is not losing or gaining weight (if a kitten we want gain of course).
As Journeyman mentioned, buying an automatic food dispenser is great!! Cats are grazers and will benefit from being able to eat small portions throughout the day vs all at once.
For dispensing wet food be sure the product you use can keep the food refrigerated until use. Cats typically like warmer foods as the smell is much stronger, their taste buds are sub-par compared to us so they heavily rely on smell.
If you do not wish to have an automatic food dispenser you can feed him twice a day, 1/2 the daily portion in the morning and 1/2 in the evening.
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