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Carnivore Macro Calculator

The carnivore diet is an all-animal eating pattern with extremely low carbohydrate intake. It is popular as an elimination protocol for autoimmune or digestive symptoms, though peer-reviewed long-term outcome data is limited. This calculator applies a 35/5/60 macro split to your TDEE as an informational framework — not a clinical recommendation.

Reviewed by GetHealthyCalculators Editorial Team · Updated April 14, 2026

Quick Answer

A carnivore macro split is roughly 35% protein, 5% carbs (from eggs and dairy if included), and 60% fat. Calories come almost entirely from fatty ruminant meat, eggs, and organ meats.

These results are estimates based on general formulas and are not a substitute for professional medical advice. Consult a healthcare provider before making health decisions.

Fill in your info to calculate your carnivore macros.

How the Formula Works

  1. Compute TDEE from your inputs.

    TDEE = BMR x Activity Factor

  2. Apply a carnivore macro split: 35% protein, 5% carbs, 60% fat.

    P/C/F = 35/5/60

  3. Convert calorie shares to grams using 4/4/9 kcal/g.

    grams = (kcal_share) / (kcal_per_gram)

Methodology & Sources

Reviewed and updated April 14, 2026 · Prepared by GetHealthyCalculators Editorial Team

Macro ratios reflect common carnivore practice. Peer-reviewed outcome data is sparse. This is an educational framework; consult a clinician before making a major dietary change, especially with cardiovascular, kidney, or liver conditions.

References

  • Lennerz BS et al. Behavioral characteristics and self-reported health status among 2029 adults consuming a carnivore diet (2021) · Current Developments in Nutrition
  • Phinney SD, Volek JS. The Art and Science of Low Carbohydrate Performance. · Beyond Obesity LLC

Limitations

  • Long-term randomized data on cardiovascular, renal, and cancer outcomes on carnivore diets is not available.
  • Fiber intake is essentially zero on strict carnivore, which changes bowel patterns for many people. Some tolerate this; some do not.
  • Vitamin C needs are low on a meat-only diet (fresh raw meat provides small amounts; glucose competition decreases; oxidative stress shifts) but remain a research question.
  • Eating-disorder history, chronic kidney disease, familial hypercholesterolemia, and pregnancy are all strong reasons to avoid strict carnivore without clinician supervision.

Frequently Asked Questions

Is carnivore safe long-term?
We do not have rigorous long-term data in large, diverse populations. Short-term observational studies (Lennerz 2021) report improved self-rated symptoms among voluntary adherents, but these are self-selected and lack controls. Regular lab monitoring (lipids, ApoB, LDL particle number, kidney function, insulin) is prudent for anyone doing strict carnivore for more than a few months.
Do I need to include organ meats?
Organ meats (especially liver) provide nutrients that muscle meat lacks in abundance — vitamin A, copper, folate, and B vitamins. Many carnivore practitioners include a small serving of liver once or twice per week for micronutrient insurance.
Is ground beef enough?
Fatty ground beef (80/20 or 70/30) is a popular staple because it provides both protein and fat. Rotating with fatty fish (salmon, sardines for omega-3) and organ meats addresses most common nutrient gaps.
What about cholesterol?
LDL cholesterol often rises on carnivore, particularly in lean ("metabolically healthy") individuals. The clinical significance of this rise is debated. If LDL rises substantially, tracking ApoB and LDL particle number (not just LDL-C) gives a more complete picture, and a clinician should evaluate whether the change warrants action.

Cross-check your lipid panel with the Cholesterol Ratio Calculator

Cholesterol Ratio Calculator

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