Honor Pet Blog

Creating a Weight Loss Plan for Your Senior Pet: A Step-by-Step Guide

Written by Dr. Shea Cox | Apr 7, 2025 2:30:24 PM

In this post, we're going to walk through creating a personalized weight loss plan for your senior pet. Whether you're looking to adjust your dog diet or cat diet, we'll use a real-life example to show you exactly how to calculate your pet's calorie needs, set realistic goals, and implement a safe, effective weight loss strategy. We'll even touch on weight loss dog food and weight loss cat food options. Whether your pet needs to lose a little or a lot, this guide will give you the tools to help them shed those extra pounds and gain a new lease on life.

Let's begin by walking through creating a weight loss plan for a specific pet. We'll use the example of Max, a 10-year-old neutered male Labrador Retriever. The process we'll outline can be adapted for both dogs and cats, so if you're wondering how to put a cat on a diet, don't worry – we've got you covered there too!

 

Step 1: Determine Current and Ideal Weight

  • Max's current weight: 90 pounds (40.8 kg)
  • Max's ideal weight (as determined by the vet): 70 pounds (31.8 kg)

 

Step 2: Calculate Daily Calorie Needs for Ideal Weight

For dogs, we use the following formula: Daily calories = 30 x (ideal weight in kg) + 70

 

For Max: 30 x 31.8 kg + 70 = 1,024 calories

 

This gives us Max's Resting Energy Requirement (RER), which is the number of calories he needs at rest.  If you're trying to figure out how to put a dog on a diet, this calculation is a crucial first step.

 

Step 3: Adjust for Age and Activity Level

As a senior, less active dog, we now need to adjust for activity level. 

 

We do this by multiplying by 1.3: 1,024 x 1.3 = 1,331 calories

 

This is what Max would need at his ideal weight with his current activity level. Remember, whether you're adjusting a dog diet or cat diet, considering age and activity level is crucial, especially when it comes to senior pet care.

 

Step 4: Create a Calorie Deficit for Weight Loss

To lose weight safely, we'll reduce this by 20%: 1,331 x 0.8 = 1,065 calories

 

This is Max's daily calorie goal for pet weight loss. This principle applies to both dog diet and cat diet plans.

 

Step 5: Plan Meals and Treats

Let's say Max's weight loss dog food has 350 calories per cup: 1,065 ÷ 350 = 3 cups of food per day

 

We'll stick with 3 cups to allow for some treats:

  • 3 cups of food = 1,050 calories
  • This leaves 15 calories for treats (about 1-2 small treats per day)
  • You can also cut back his food, for example, to 2.5 cups a day which would allow for 190 calories in healthy treats or snacks (such as lean cubed chicken pieces, for example)

 

Calorie-counting tips:

  • Use “psychological” treats: offer treats that are low in calories such as small pieces of apple, carrots, or a frozen blueberry; remember, it’s not the amount they get but the physical act of getting it
  • Use “fillers”: When I need to work on my dog’s weight, I add canned green beans to her food to help her feel more full without adding a lot of calories. There’s a lot of green beans in 190 calories! 

 

Step 6: Implement the Plan Gradually

When adjusting your pet's dog diet or cat diet for weight loss, it's important to reduce food gradually. This helps your pet adjust to eating less without feeling deprived. Let's use Max as an example to illustrate this process:

Current amount: 4 cups per day Target amount: 3 cups per day

Week 1:

  • Reduce by 1/3 cup
  • New amount: 3 2/3 cups per day

Week 2:

  • Reduce by another 1/3 cup
  • New amount: 3 1/3 cups per day

Week 3:

  • Reduce by final 1/3 cup
  • New amount: 3 cups per day (target reached)

This gradual reduction approach works whether you're adjusting a dog diet or figuring out how to put a cat on a diet. The key is to make small, consistent reductions each week until you reach the target amount.

Remember, the goal is to reach the new food amount gradually, allowing your pet to adjust comfortably to their new diet. This method can be applied whether you're using regular food or if you are using specialized weight loss dog food or weight loss cat food.

Step 7: Monitor Progress

  • Weigh Max every 2 weeks
  • Aim for a weight loss of 1-2% of body weight per week (0.9-1.8 pounds for Max)
  • Adjust the plan if weight loss is too fast or slow

 

Step 8: Reassess Regularly

As Max loses weight, recalculate his calorie needs every 10 pounds lost

Remember:

  • Increase exercise gradually: Start with 10-minute walks twice daily, slowly increasing duration and frequency
  • Use a measuring cup for food and treats
  • Consider splitting meals into 2-3 smaller portions throughout the day
  • Always have fresh water available

 

For Cats:

If you have a cat, the process is similar, but we use a different formula:

 

Daily calories = (Ideal weight in pounds) x 20

 

For example, for a 12-pound cat that should ideally weigh 10 pounds: 10 x 20 = 200 calories per day

 

For the gradual reduction in amount, the process would be similar. For example, if transitioning from 1 cup to 3/4 cup of weight loss cat food, you might reduce by 1/12 cup each week over three weeks.

 

Continue to follow steps 4-8 as outlined above, adjusting for your cat's specific needs.

 

Remember, always consult with your veterinarian before starting any weight loss plan, especially for senior pet care or those with health conditions. Your vet can help you fine-tune this plan to your pet's specific needs and health status but hopefully this gives you a start!

With patience, consistency, and love, you can help your senior pet achieve a healthier weight and enjoy their golden years to the fullest. Good luck on your pet's weight loss journey!