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Keto / Carnivore Food Checker
Analyze bacon, eggs, cheese, heavy cream, organ meats, protein powder + quantities — get metabolic flags: ✅ fat-adapted fuel, ⚠️ gluconeogenesis risk, 💀 zero‑carb sugar bomb.
Activity level:
Carnivore strict mode?
Add foods, quantities, then click "Analyze Meal"
to see ✅ Good, ⚠️ Bad, or 💀 Ugly verdict.
Free keto/carnivore analyzer | metabolic flags based on fat:protein ratio & fructose detection
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✅ 100% free. No signup. Results in under 10 seconds.
How to Use the Keto / Carnivore Food Checker
Understand your metabolic flags, the math behind them, and why this tool goes beyond standard carb counting.
How to Use This Calculator
1. Select your activity level — Sedentary, Active, or Athlete. This adjusts protein tolerance because athletes can handle more protein without triggering gluconeogenesis.
2. Add your foods — Choose from bacon, eggs, cheese, heavy cream, organ meats, protein powder, plus advanced options (butter, tallow, ground beef, salmon, sardines, bone broth).
3. Enter quantities naturally — Examples: “3 slices,” “2 large eggs,” “50g,” “1 tbsp,” “1 can.” The parser understands slices, tbsp, cups, oz, grams, and fractions.
4. (Optional) Enable Carnivore strict mode — This flags any dairy or plant-based foods, keeping the meal zero‑carb carnivore compliant.
5. Click “Analyze Meal” — Instantly see your verdict: ✅ Good (fat-adapted fuel), ⚠️ Bad (gluconeogenesis risk), or 💀 Ugly (zero‑carb sugar bomb).
6. Review macro breakdown & citation — Below the verdict you’ll find fat/protein/carb grams, calorie ratio, and an expandable scientific reference explaining the metabolic mechanism.
Why It Matters
Most keto calculators only count net carbs. But many people following ketogenic or carnivore diets hit frustrating stalls because of too much lean protein (which can trigger insulin via gluconeogenesis) or hidden fructose (which, when combined with fat, drives liver inflammation and fat storage). This tool flags those metabolic blind spots — giving you actionable insights, not just numbers.
Fat-adapted fuel
Gluconeogenesis warnings
Fructose + fat bombs
The Math Behind the Verdict
Step 1 – Convert portions to grams
“2 slices bacon” → 30g, “2 large eggs” → 100g, “1 tbsp heavy cream” → 15g. This uses a dynamic parser that understands natural language.
Step 2 – Calculate macros per 100g
Bacon: 42g fat, 33g protein, 0.5g carbs. Multiply by grams/100 → fat grams × 9 = fat calories; protein grams × 4 = protein calories.
Step 3 – Compute fat:protein calorie ratio
Fat calories ÷ protein calories. If ratio < 0.9 AND total protein > activity threshold (sedentary: 38g, active: 60g, athlete: 90g) → ⚠️ gluconeogenesis risk.
Step 4 – Detect “ugly” combinations
Heavy cream + any fructose (honey, agave, fruit concentrate) → 💀 because fat slows stomach emptying, prolonging fructose exposure to the liver, driving de novo lipogenesis (Stanhope et al., 2009).
Step 5 – Net carbs warning
If net carbs > 10g, the meal may disrupt ketosis for sensitive individuals — flagged automatically.
Example: 3 eggs (150g) + 50g cheddar → fat ~33g (297 cal), protein ~31.5g (126 cal), ratio: 2.36 → ✅ Good.
Frequently Asked Questions
Is gluconeogenesis always bad for keto?
No — it’s a normal, demand-driven process. However, excess protein (>35-40g per meal) with very low fat can reliably increase glucose production and reduce ketone levels per Volek & Phinney (2012). This tool flags risk, not certainty.
Can I use this for a strict carnivore diet?
Absolutely. Toggle Carnivore strict mode — the calculator will flag dairy (cheese, heavy cream) and any plant-based ingredients. Only meat, eggs, organ meats, and animal fats will pass as clean carnivore.
Do I need to track net carbs separately?
No, the calculator automatically computes net carbs (total carbs - fiber; our database already uses net values). If your meal exceeds 10g net carbs, you’ll see a warning.
Is this tool medically accurate?
This is an educational reference based on peer-reviewed ketogenic and metabolic research (Volek & Phinney, Feinman & Fine, Stanhope et al.). Individual responses vary. Always consult a physician before making dietary changes.
What if my quantity isn’t recognized?
The parser handles slices, tbsp, tsp, cups, oz, grams, lb, eggs, and fractions (e.g., 1/2). For custom amounts, simply use “g” (grams) – e.g., “150g ground beef”.
Why does heavy cream + fructose get 💀 Ugly?
Fat delays gastric emptying, meaning fructose lingers in the gut and hits the liver over a longer period. This combination uniquely drives hepatic de novo lipogenesis, triglycerides, and inflammation (Stanhope et al., J Clin Invest 2009; Lustig, 2013).
References: Volek & Phinney (2012) – The Art and Science of Low Carbohydrate Living; Feinman & Fine, Nutr Metab (2004); Stanhope et al., J Clin Invest (2009); Lustig, Fat Chance (2013).
Keto / Carnivore Food Checker — free metabolic analysis tool | flags gluconeogenesis, fructose bombs & fat adaptation.
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