How Much Food Should Dogs Eat?

Math and science come together to determine right answer for your dog.

There is a formula you can use to determine exactly how much food your dog needs. Dog eating from the bowl by Shutterstock

Q.

How many grams of dog food should a 19-pound dog eat?

A.

Warning: This answer is for math and science aficionados only!

First, we have to get our numbers in the same universe: Grams and pounds do not correlate very well. Let’s convert your dog’s weight to kilograms, using the formula 2.2 pounds = 1 kilogram. Therefore, your dog’s metric weight is 8.63 kilograms (19/2.2).

To calculate your dog’s daily caloric needs, we use the formula: Daily calories = Body Weight (kg) X 30 + 70, or 329 calories per day.

Now you must check the label on your dog food, and see how many calories are in each cup, and feed accordingly.

Of course, this metabolic formula is theoretical only, and will very according to each dog’s metabolism. Many dog’s self-regulate, so you can free-feed them, and they will eat the exact amount they need.

Interestingly, this same metabolic formula can be used to calculate how much fluid your dog needs in a day. This is because each kilocalorie of food uses 1 mL of water during its metabolism. In this case, your dog would need to drink 329 mL per day.

If you enjoy the math and science of metabolism, feel free to use this formula to calculate your dog’s nutritional needs. Alternatively, you can start with the recommendation on the bag or can, then adjust if your dog starts to gain or lose weight.

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Article Categories:
Dogs · Food and Treats · Health and Care

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