If you’ve switched your pet to a raw diet, you might notice that their bloodwork results look different from a kibble-fed pet’s. These variations are completely normal and are a reflection of a species-appropriate diet. However, many veterinarians unfamiliar with raw feeding might see these differences as concerning. That’s why it’s essential to understand what these values mean and why they occur.

Bloodwork Differences: Raw-Fed vs. Kibble-Fed
Here’s a breakdown of the most common differences seen in raw-fed pets:
1. Higher BUN (Blood Urea Nitrogen)
Raw-Fed Range: 22 - 35 mg/dL
Kibble-Fed Range: 10 - 25 mg/dL
Why? Raw-fed pets consume higher-quality protein, leading to increased protein metabolism, which results in slightly higher BUN levels. This is normal and does not indicate kidney dysfunction unless paired with other abnormal markers.
2. Higher Creatinine
Raw-Fed Range: 1.4 - 2.2 mg/dL
Kibble-Fed Range: 0.6 - 1.6 mg/dL
Why? Creatinine is a byproduct of muscle metabolism. Raw-fed pets tend to have more lean muscle mass, which can cause higher creatinine levels. This is not a sign of kidney disease when hydration levels are normal.
3. Higher Albumin Levels
Raw-Fed Range: 3.5 - 4.8 g/dL
Kibble-Fed Range: 2.7 - 4.4 g/dL
Why? Albumin is a protein found in the blood. A raw diet provides highly bioavailable protein, leading to naturally higher albumin levels.
4. Higher Total Protein
Raw-Fed Range: 6.5 - 8.2 g/dL
Kibble-Fed Range: 5.7 - 7.8 g/dL
Why? Raw diets contain higher amounts of quality protein, contributing to an increased total protein count.
5. Higher Cholesterol
Raw-Fed Range: 180 - 320 mg/dL
Kibble-Fed Range: 120 - 280 mg/dL
Why? Raw-fed pets typically consume more healthy fats, which result in a different lipid metabolism. This is not an issue unless cholesterol levels are excessively high and accompanied by other risk factors.
6. Lower Glucose Levels
Raw-Fed Range: 70 - 90 mg/dL
Kibble-Fed Range: 85 - 120 mg/dL
Why? Raw-fed pets consume little to no processed carbohydrates, leading to a lower, more stable blood sugar level. Lower glucose levels are normal in raw-fed pets and do not indicate hypoglycemia unless clinically symptomatic.
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