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Spoiler: It’s a short-term fix for a longer term issue. Let’s get into the receipts.
🥩 What Is the Carnivore Diet?
The carnivore diet is an all-animal, zero-carb eating plan that cuts out all plant-based foods. Think meat, eggs, and fish on repeat—with no fruits, veggies, grains, or legumes.
While it might seem new and edgy, it has historical roots. Some Indigenous groups survived on meat-heavy diets, especially in colder climates, and in the 1700s and 1800s, diabetes was managed pre-insulin with “meat-only” diets.
Fast forward: social media made it trendy again—thanks to influencers who claimed better health, energy, and blood sugar control by going meat-only.
But trendy ≠ healthy or sustainable.
Here’s why as a health coach and a nutritionist, I don’t recommend the carnivore diet for long-term blood sugar management for people with diabetes.
Table of contents
- 🥩 What Is the Carnivore Diet?
- 🔬 Blood Sugar and Insulin Resistance
- ❤️ Cardiovascular Risk
- 🥦 Missing Nutrients and Zero Fiber? Red Flag.
- 🔥 Inflammation and Immune Response
- ⚠️ So, What’s the Verdict on the carnivore diet for diabetes?
- ✅ What to Do Instead
- 👩⚕️ Bottom Line (from a board-certified health coach + nutritionist)
🔬 Blood Sugar and Insulin Resistance
I say it all the time – most nutrition advice is extremely boring, and simple.
If the advice sounds too good to be true, it likely is. Or, it may have some caveats.
Carnivore diet in the short-term? Yep, blood sugar often drops. When you cut out all carbs, there’s less glucose entering your bloodstream, so post-meal spikes calm down.
A 2021 survey of over 2,000 carnivore diet followers reported that those with diabetes experienced lower HbA1c and reduced reliance on medication.
Sounds great, right? Hold your brisket.
That same study was self-reported data. And while it showed lower blood sugar, it didn’t measure insulin resistance—the root of type 2 diabetes. And diets high in saturated fat (like carnivore) may actually worsen insulin resistance over time.
👉 Read the study on saturated fat intake and insulin resistance
❤️ Cardiovascular Risk
Diabetes already raises your risk of heart disease. Now imagine adding lots of red meat, saturated fat, and zero fiber to that. Yikes.
In the same 2021 carnivore diet survey, participants had a median LDL cholesterol of 172 mg/dL—which is dangerously high.
Experts agree: elevated LDL is a strong predictor of heart attacks and strokes, especially in people with diabetes.
👉 AHA guidance on LDL and cardiovascular disease
🥦 Missing Nutrients and Zero Fiber? Red Flag.
Let’s talk about what this diet doesn’t give you:
- B Vitamins like Thiamin
- No vitamin C (scurvy, anyone?)
- Low magnesium, calcium, sodium and potassium
- Zero fiber—which we need for blood sugar balance, digestion, and gut health
- Iron
A 2024 nutritional breakdown of carnivore-style diets found multiple micronutrient shortfalls unless the individual supplemented what was missing. In any case, because this diet doesn’t have much variety, it’s important to be supervised for signs of malnutrition.
👉 2024 nutrient analysis of carnivore diets
🔥 Inflammation and Immune Response
Some carnivore advocates claim less joint pain or clearer skin. Meanwhile, studies show that plant-based diets lower inflammation markers like CRP (C-reactive protein), while high-meat diets raise them.
⚠️ So, What’s the Verdict on the carnivore diet for diabetes?
The carnivore diet is not recommended for people with diabetes. Here’s why:
- It lowers blood sugar but may worsen insulin resistance
- Raises LDL cholesterol, increasing cardiovascular risk
- Lacks essential vitamins and dietary fiber
- There’s no long-term clinical evidence that it’s safe or effective
✅ What to Do Instead
You can manage diabetes without going to extremes. Be sure to balance fat, fiber and protein alongside your carbohydrates for better blood sugar balance with your foods.
If you do want to create meals according to a specific eating plan, try out our Glucose Guide Diabetes Food Journal. It creates meal plans according to your preferences, while still considering all of the needs for someone who has diabetes.
If you do want a more structured way of eating, you could try the following diets, which have been studied, and evaluated for long-term effects.
1. Mediterranean Diet
Rich in vegetables, olive oil, fish, legumes. Proven to lower HbA1c and cardiovascular risk.
2. Whole-Food Plant-Based Diet
Includes high-fiber foods that help improve insulin sensitivity, inflammation, and blood lipids.
3. Balanced Low-Carb Approach
Want to go lower carb? Great. You don’t need to go full ribeye warrior. Try 100–130g of carbs per day from whole-food sources.
👩⚕️ Bottom Line (from a board-certified health coach + nutritionist)
If you’re looking for a long-term, sustainable, blood-sugar-friendly approach—you do not need to eliminate entire food groups. Be cautious when taking this approach, and ensure that you’ve talked to a healthcare provider about moving forward with a plan like this.
Focus on whole foods, fiber, protein, and joyful eating. You can still eat carbs. You can still enjoy your food. You just need balance—and support.
