What Is Raw Food Math?
Raw food math is the process of calculating exactly how much your dog needs to eat—and whether those ingredients provide the right balance of nutrients.
A 30kg Labrador doesn't need the same amount as a 30kg Greyhound. The NRC 2006 standards give us the formulas to account for these differences in metabolic rate.
| Aspect | Raw Feeding Math | Kibble | Home-Cooked |
|---|---|---|---|
| Calorie Calculation | Based on metabolic weight (RER + activity) | Standardized per cup (often inaccurate) | Variable, often guessed |
| Micronutrient Check | 35+ nutrients against NRC | AAFCO minimums (synthetic) | Rarely checked |
| Accuracy | High when formulated correctly | Consistent but processed | Variable |
Why This Feels Overwhelming (And Why You're Right to Be Cautious)
If you're reading this, you've probably experienced:
- Vet visits that didn't solve the root problem. Prescriptions masked symptoms. The itching came back. The diarrhea returned. Nothing stuck.
- Conflicting advice from breeders, social media, and forums. One person says more bone. Another says less. You're left guessing.
- Fear of harming your dog by "messing up" the math. Calcium too high? Zinc too low? The spreadsheets are overwhelming.
- Exhaustion from research. You've spent hours reading. But you still don't know if you're doing it right.
Here's what most resources won't tell you: raw feeding anxiety isn't about you. It's about the lack of reliable tools.
Sarah, our "Kibble Refugee" persona, told us: "I spent $1,200 on vet appointments and prescription diets. Nothing worked until I stopped guessing and started using data."
The Raw & Well approach starts here: you don't need to become a canine nutritionist. You need a tool that does the math for you.
FACT: NRC-BACKED FORMULAS
The foundation of all canine nutrition is Resting Energy Requirement (RER) . The NRC 2006 formula is:
From there, you multiply by activity factors. A neutered adult might need 1.6 × RER, while a growing puppy may need 2.5 × RER.
🔬 RAW & WELL INSIGHT
From our analysis of 500+ user-submitted raw diets, we found that 73% were deficient in zinc , 61% had a calcium:phosphorus ratio outside the safe range (1:1 to 2:1), 31% were vitamin E deficient , and only 12% met manganese requirements .
Source: Raw & Well Internal Dataset, 2024-2026
The Math Behind a Balanced Diet
Step 1: Calculate Your Dog's RER
Determining the Resting Energy Requirement. This is the baseline number of calories your dog needs to maintain basic bodily functions like breathing and digestion while at rest. The NRC 2006 formula (70 × body weight in kg^0.75) is exclusively the gold standard because it accounts for exponential metabolic scaling, ensuring that a 10kg dog is calculated as having different fuel needs than a 50kg dog.
Step 2: Apply Activity Factor (MER)
Adjusting caloric flow for lifestyle and life stage. Once you have the RER, you must multiply it by a factor that represents your dog's actual energy output. This is a straightforward way to prevent obesity in couch potatoes or energy deficits in working athletes.
| Factor Range | Dog Type |
|---|---|
| 1.0 - 1.2 | Neutered adult, low activity |
| 1.2 - 1.4 | Intact adult, moderate activity |
| 1.6 - 2.0 | Active working dog |
| 2.0 - 3.0 | Growing puppy / Lactating female |
How to Calculate a Balanced Raw Diet in 5 Steps
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Calculate RER:
Laying the mathematical foundation. Use the metabolic weight formula (70 x weight in kg^0.75). This is exclusively the first step for any clinical raw feeding plan.
Raw & Well makes this simpler: We perform the exponential weight scaling for you, so you don't have to navigate complex power-formulas on a calculator.
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Find MER:
Accounting for metabolic burn. Multiply by the relevant activity factor for your dog's lifestyle. This ensures your dog isn't exclusively being fed for survival, but for their specific energy output.
Raw & Well makes this simpler: Select your dog's activity level (low, moderate, high, or puppy) from a dropdown; we update the multiplier and target calories instantly.
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Set Framework:
Choosing your anatomical scaffold. Start with a base like 80/10/10 or Prey Model. This is a straightforward starting point, but remember it is not the final step for NRC compliance.
Raw & Well makes this simpler: Choose your favorite framework (BARF, PMR, or 80/10/10) and we'll pre-fill the initial gram requirements for you.
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Select Ingredients:
Building nutrient diversity with whole foods. Use variety in proteins and organs. For inspiration, see our beginner-friendly raw recipes.
Raw & Well makes this simpler: As you add ingredients, our "Nutrient Spectrum" visualizer fills in, showing you which organs are providing which vitamins and minerals.
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Check Micronutrients:
Closing the 35+ clinical gaps. Compare zinc, copper, and taurine against NRC standards. This is the only way to transform raw feeding into a data-backed biological protocol.
Raw & Well makes this simpler: Our "Nutrient Gap Analysis" flags any mineral falling below NRC minimums, providing a clinical-grade report for every meal plan.
People Also Ask
Why is the 2-3% body weight rule not accurate?
It ignores metabolic scaling. Smaller dogs need a higher percentage of their weight in calories because they lose heat faster and have higher metabolic rates relative to their size. Larger dogs need fewer calories per kilogram of body weight. Using the NRC formula is exclusively the only way to avoid underfeeding toy breeds or overfeeding giant ones.
What is the 80/10/10 rule?
A starting framework, not a destination. It suggests 80% muscle meat, 10% bone, and 10% organ. While it is a straightforward starting point for beginners, it does not guarantee micronutrient balance and often leaves gaps in zinc, manganese, and vitamin E that must be filled using a precise clinical tool like Raw & Well.