Balancing your dog’s diet is critical to their overall health and longevity. Treats are a wonderful way to bond with your dog or reward good behaviour, but overindulgence can upset the carefully calibrated balance of their daily nutritional needs.
This is where the 10% Rule comes into play. This widely recognized guideline in veterinary nutrition ensures that treats remain just that—treats—while the majority of your dog’s calories come from a complete and balanced diet.
Understanding the 10% Rule
The 10% Rule states that no more than 10% of your dog’s daily caloric intake should come from treats, with the remaining 90% coming from a complete and balanced diet. This ensures your dog receives all the essential nutrients they need while allowing for small indulgences.
What Is a “Complete and Balanced” Diet?
- Complete: Provides every essential vitamin, mineral, protein, fat, and carbohydrate needed for your dog.
- Balanced: Delivers these nutrients in the right proportions to match their energy needs, preventing deficiencies or excesses.
- Complete and Balanced: Meets both standards and is formulated to support long-term health. Commercial diets often earn this label through expert formulation and AAFCO certification or rigorous feeding trials.
Why Balance Matters
While this balance may seem straight forward, it’s actually a carefully orchestrated system where nutrients interact with each other in complex ways. Think of your dog’s diet as a finished puzzle—every nutrient is a piece that fits perfectly. When you add treats or “toppers,” it’s like adding pieces that do not fit. Even small changes can disrupt the careful balance and lead to deficiencies or excesses, which can cause health issues over time.
Mulder’s Mineral Wheel (see chart) illustrates these complex relationships—minerals work together or compete, so maintaining balance is key.
The 10% Rule
The 10% Rule is a cornerstone of modern pet nutrition. It’s widely recognized by veterinary professionals—including the American College of Veterinary Nutrition (ACVN)—and reinforced by trusted texts like Small Animal Clinical Nutrition. This guideline ensures that every treat or dietary addition fits neatly into your dog’s overall nutritional “puzzle,” maintaining a balanced diet for long-lasting health.
Calculating the 10% Rule
To figure out your dog’s treat allowance, you’ll first need to know their total daily caloric requirement. This goes beyond just reading the food bag—your dog’s energy needs depend on their weight, age, activity level, and overall health.
To make sure treats don’t exceed 10% of your dog’s total calories, follow these simple steps:
Step 1: Calculate Your Dog’s Resting Energy Requirement (RER)
The RER is the baseline number of calories your dog needs to maintain basic bodily functions like breathing and digestion, not including activity.
Formula:
RER (kcal/day) = 70 × (body weight in kg)^0.75
Step 1. Convert your dog’s weight to kilograms (if it’s in pounds, divide by 2.2 to convert to kg).
Step 2a: Calculate Resting Energy Requirement (RER)
RER estimates the calories your dog needs at rest, without accounting for activity.
- Formula: RER (kcal/day) = 70 × (body weight in kg^0.75)
- Example for Baby Gentry, a growing Old English Sheepdog Puppy: 23.18^0.75 ≈ 10.63
- 70 × 10.63 ≈ 744kcal/day
Step 2b: Factor in Your Dog’s Activity Level to Calculate MER
The Maintenance Energy Requirement (MER) adjusts the RER to reflect your dog’s activity level and life stage. For adult dogs, MER is the total number of calories needed daily to maintain their weight, factoring in their activity level. If your dog is more active, their MER will be higher.
Activity Level Multipliers:
Sedentary (little/no exercise): RER × 1.2
Lightly active (daily walks): RER × 1.4
Moderately active (active playtime): RER × 1.5
Very active (working dogs): RER × 1.8
For example, if Baby Gentry were an adult dog and moderately active, you’d calculate: MER = 744 × 1.5 ≈ 1,116 kcal/day. This means that with moderate activity, Gentry’s daily energy requirement would be about 1,116 calories. However, since Gentry is a puppy, we need to calculate his Daily Energy Requirement (DER) instead, which accounts for growth.
Step 3: Factor in Growth for Puppies (DER Calculation)
For growing puppies like Baby Gentry, we use the Daily Energy Requirement (DER), which accounts for their increased caloric needs due to growth. Puppies need more calories than adults to support their development. For large-breed puppies, the growth multiplier depends on their weight relative to their expected adult size:
Weaning to 50% of adult weight: RER × 3
50% to 80% of adult weight: RER × 2.5
80% to adult weight: RER × 2
Since Baby Gentry is between 50-64% of his expected adult weight (estimated 80–100 lbs), his growth multiplier is 2.5.
DER = RER × 2.5
So, for Baby Gentry: DER = 744 × 2.5 ≈ 1,860 kcal/day. This reflects his increased caloric needs for healthy growth.
Step 4: Apply the 10% Rule
Once you’ve calculated your dog’s total caloric needs, you can apply the 10% Rule to determine how many treats you can give.
For Baby Gentry, with a DER of 1,860 kcal/day, 10% of that would be 186 kcal.
Final Summary for Baby Gentry:
RER: 744 kcal/day
DER (Growth Factor 2.5): 1,860 kcal/day
Treats (10% of DER): 186 kcal/day
This means Baby Gentry should not receive more than 186 kcal in treats each day. The 10% Rule ensures treats don’t exceed 10% of your dog’s daily caloric intake, leaving 90% for a complete and balanced diet.
Step 2b: Factor in Your Dog’s Activity Level to Calculate MER
The Maintenance Energy Requirement (MER) adjusts the RER to reflect your dog’s activity level and life stage. For adult dogs, MER is the total number of calories needed daily to maintain their weight, factoring in their activity level. If your dog is more active, their MER will be higher.
Here’s a guide to determine your dog’s MER based on activity level:
- Sedentary (little/no exercise): RER × 1.2
- Lightly active (daily walks): RER × 1.4
- Moderately active (active playtime): RER × 1.5
- Very active (working dogs): RER × 1.8
Apply an Activity Factor to the RER to get the Maintenance Energy Requirement (MER). This gives you the number of calories your dog needs daily to stay healthy:
- Sedentary (little /no exercise) = RER × 1.2
- Lightly active (daily walks) = RER × 1.4
- Moderately active (active playtime) = RER × 1.5
- Very active (working dogs) = RER × 1.8
For example, if Baby Gentry were an adult dog and moderately active, you’d calculate: MER = 744 × 1.5 ≈ 1,116 kcal/day. This means that with moderate activity, Gentry’s daily energy requirement would be about 1,116 calories. However, since Gentry is a puppy, we need to calculate his Daily Energy Requirement (DER) instead, which accounts for growth.
Step 3: Factor in Growth for Puppies (DER Calculation)
For growing puppies like Baby Gentry, we use the Daily Energy Requirement (DER), which accounts for their increased caloric needs due to growth. Puppies need more calories than adults to support their development. For large-breed puppies, the growth multiplier depends on their weight relative to their expected adult size:
- Weaning to 50% of adult weight: RER × 3;
- 50% to 80% of adult weight: RER × 2.5;
- 80% to adult weight: RER × 2.
Since Baby Gentry is between 50-64% of his expected adult weight (estimated 80-100 lbs), his growth multiplier is 2.5.
DER = RER × 2.5.
For Gentry: DER = 744 × 2.5 ≈ 1,860 kcal/day. This reflects his increased caloric needs for healthy growth.
Step 4: Apply the 10% Rule
Once you’ve calculated your dog’s total caloric needs, you can apply the 10% Rule to determine how many treats you can give.
- For Baby Gentry, with a DER of 1,860 kcal/day, 10% of that would be 186 kcal.
- Final Summary for Baby Gentry:
- RER: 744 kcal/day
- DER (Growth Factor 2.5): 1,860 kcal/day
- Treats (10% of DER): 186 kcal/day
This means Baby Gentry should not receive more than 186 kcal in treats each day.
The 10% Rule ensures treats don’t exceed 10% of your dog’s daily caloric intake, leaving 90% for a complete and balanced diet.
Understanding your dog’s energy requirements is essential for meeting their nutritional needs. These measurements ensure your pet gets the right amount of calories for their life stage, activity level, and health. Below is a breakdown of each energy requirement:
RER (Resting Energy Requirement)
RER (Resting Energy Requirement) is the baseline for determining energy needs. It represents the amount of energy required for basic bodily functions like breathing, circulating blood, and sleeping. RER is calculated based on body weight and measured in kilocalories (kcal). It reflects the minimum energy needed for vital functions at rest, excluding physical activity, growth, or environmental factors. While RER provides a starting point, it doesn’t account for variables like activity level, growth, or temperature. For a more accurate assessment, the Daily Energy Requirement (DER) is used. DER adjusts RER by incorporating factors like life stage, growth, and activity level, providing a more complete picture of a pet’s nutritional needs.
- The amount of energy needed to perform basic functions like breathing and sleeping
- Based on body weight
- Measured in kilocalories (kcal)
- Does not account for activity, growth, or temperature factors
For a more complete assessment, DER factors in these variables, giving a fuller picture of a pet’s nutritional needs.
MER (Maintenance Energy Requirement)
The Maintenance Energy Requirement (MER) adjusts the RER to reflect your dog’s activity level and life stage.
For adult dogs, MER represents the total daily calories needed to maintain a healthy weight, including energy used for exercise and daily routines.
If your dog is more active, their MER will be higher.
Activity Level Multipliers:
- Sedentary (little/no exercise): RER × 1.2
- Lightly active (daily walks): RER × 1.4
- Moderately active (active playtime): RER × 1.5
- Very active (working dogs): RER × 1.8
Example:
If Baby Gentry were an adult, moderately active dog:
MER = 744 × 1.5 = 1,116 kcal/day
Next, apply an Activity Factor to the RER to get the Maintenance Energy Requirement (MER). This gives you the number of calories your dog needs daily to stay healthy:
Sedentary (little or no exercise) = RER × 1.2
Lightly active (daily walks) = RER × 1.4
Moderately active (active playtime) = RER × 1.5
Very active (high-energy working dogs) = RER × 1.8
For example, if Baby Gentry were an adult dog and moderately active, you’d calculate: MER = 744 × 1.5 ≈ 1,116 kcal/day. This means that with moderate activity, Gentry’s daily energy requirement would be about 1,116 calories. However, since Gentry is a puppy, we need to calculate his Daily Energy Requirement (DER) instead, which accounts for growth.
Step 3: Factor in Growth for Puppies (DER Calculation)
For growing puppies like Baby Gentry, we use the Daily Energy Requirement (DER), which accounts for their increased caloric needs due to growth. Puppies need more calories than adults to support their development. For large-breed puppies, the growth multiplier depends on their weight relative to their expected adult size:
- Weaning to 50% of adult weight: RER × 3;
- 50% to 80% of adult weight: RER × 2.5;
- 80% to adult weight: RER × 2.
Since Gentry is between 50-64% of his expected adult weight (estimated 80-100 lbs), his growth multiplier is 2.5.
DER = RER × 2.5.
So, for Baby Gentry: DER = 744 × 2.5 ≈ 1,860 kcal/day. This reflects his increased caloric needs for healthy growth.
Step 4: Apply the 10% Rule
Once you’ve calculated your dog’s total caloric needs, you can apply the 10% Rule to determine how many treats you can give.
- For Baby Gentry, with a DER of 1,860 kcal/day, 10% of that would be 186 kcal.
Final Summary for Baby Gentry:
- RER: 744 kcal/day
- DER (Growth Factor 2.5): 1,860 kcal/day
- Treats (10% of DER): 186 kcal/day
- This means Baby Gentry should not receive more than 186 kcal in treats each day.
The 10% Rule ensures treats don’t exceed 10% of your dog’s daily caloric intake, leaving 90% for a complete and balanced diet.
Understanding your dog’s energy requirements is essential for meeting their nutritional needs. These measurements ensure your pet gets the right amount of calories for their life stage, activity level, and health. Below is a breakdown of each energy requirement:
RER (Resting Energy Requirement)
RER (Resting Energy Requirement) is the baseline for determining energy needs. It represents the amount of energy required for basic bodily functions like breathing, circulating blood, and sleeping. RER is calculated based on body weight and measured in kilocalories (kcal). It reflects the minimum energy needed for vital functions at rest, excluding physical activity, growth, or environmental factors. While RER provides a starting point, it doesn’t account for variables like activity level, growth, or temperature. For a more accurate assessment, the Daily Energy Requirement (DER) is used. DER adjusts RER by incorporating factors like life stage, growth, and activity level, providing a more complete picture of a pet’s nutritional needs.
The amount of energy needed to perform basic functions like breathing and sleeping
Based on body weight
Measured in kilocalories (kcal)
Does not account for activity, growth, or temperature factors
For a more complete assessment, DER factors in these variables, giving a fuller picture of a pet’s nutritional needs.
MER (Maintenance Energy Requirement)
The Maintenance Energy Requirement (MER) reflects the total energy your dog needs to maintain their ideal weight, factoring in activity level, pregnancy, or lactation. Unlike RER, which focuses on basic functions, MER is higher because it accounts for additional energy needs like physical activity. MER is calculated by multiplying RER by a factor that corresponds to the dog’s life stage and activity level:
The amount of energy an animal needs to maintain their ideal weight
Includes energy for activity, pregnancy, and lactation
Higher than RER because it accounts for more than just life-sustaining functions
To calculate MER, the RER is multiplied by a factor that corresponds to the animal’s life stage and activity level:
Sedentary (little or no exercise): RER × 1.2
Lightly active (daily walks): RER × 1.4
Moderately active (active playtime): RER × 1.5
Very active (working dogs): RER × 1.8
MER is a key measurement for determining how many calories an adult dog needs to maintain their weight, accounting for daily activity and special conditions like pregnancy or lactation. This ensures your dog stays healthy, balanced, and at an ideal weight.
DER (Daily Energy Requirement)
The Daily Energy Requirement (DER) is a comprehensive measure of a pet’s total caloric needs, accounting for factors like growth, lactation, illness, and activity level. DER builds on RER (Resting Energy Requirement) and MER (Maintenance Energy Requirement) by including additional energy needs for specific life stages or conditions. It’s particularly useful for puppies, pregnant or lactating dogs, and pets recovering from illness, as it provides a more accurate reflection of their total energy requirements.
DER includes energy for basic functions (RER), daily activity (MER), and additional needs like growth, lactation, or recovery from illness. Unlike RER, which only accounts for resting energy, DER provides a more accurate measure by factoring in increased energy demands.
Each pet has unique energy requirements based on factors like size, age, activity level, and health status. Accurately calculating their caloric needs ensures they receive the necessary nutrition to maintain a healthy weight and overall health. Overfeeding can lead to obesity, while underfeeding can cause malnutrition or other health issues.
Key Takeaways:
- DER is Comprehensive: It accounts for RER, MER, and additional energy needs like growth, lactation, or illness.
- Useful for Specific Life Stages: DER is particularly important for puppies, pregnant/lactating dogs, and pets recovering from illness.
- Prevents Overfeeding and Underfeeding: Accurate DER calculation helps maintain a healthy weight and prevents obesity or malnutrition.
Don’t want to do the math? Jump right to the PNA Calorie Calculator. This veterinary professional tool is designed to assist in making precise nutritional assessments for pets and helps guide veterinary teams in creating tailored feeding plans that ensure pets receive the right balance of calories for optimal health.
Applying the 10% Rule is a simple yet effective way to ensure your pet’s treats don’t disrupt their overall nutritional balance. By accurately calculating your pet’s caloric needs through RER, MER, and DER, you can confidently determine how much to feed them—including treats—without compromising their health. This thoughtful approach promotes a balanced, sustainable diet that meets your pet’s energy requirements, helping them live a longer, healthier life. Remember, treats are meant to complement, not replace, a well-rounded diet.
Synergistically Yours
Danielle & Bugaboo Baby Gentry
Dedicated to Sheepdog Riggs
forever in our hearts
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