The keto diet and the carnivore diet are both low-carb approaches that can put your body into ketosis — but they get there in very different ways. Keto restricts carbohydrates to roughly 20–50 grams per day while allowing vegetables, nuts, seeds, and healthy oils alongside animal proteins. The carnivore diet eliminates plant foods entirely, relying exclusively on meat, fish, eggs, and select dairy products.

That one distinction — whether plants stay on the plate or not — creates major differences in food variety, nutrient profiles, meal planning complexity, and who each diet tends to work best for. This guide breaks down exactly how keto and carnivore compare, provides a full sample meal plan for each, covers the benefits and trade-offs of both approaches, and helps you figure out which one fits your goals and lifestyle.

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What Is the Keto Diet?

The ketogenic diet is a high-fat, moderate-protein, very-low-carbohydrate eating plan designed to shift your body’s primary fuel source from glucose to fat. The typical macronutrient breakdown is approximately 60–75% of calories from fat, 20–35% from protein, and 5–10% from carbohydrates.

By keeping daily net carbs under 20–50 grams, the liver begins converting fat into ketone bodies — molecules that the brain, muscles, and other tissues can use for energy instead of glucose. This metabolic state is called nutritional ketosis, and it typically takes 2–7 days to achieve after reducing carbs.

Keto meals center on healthy fats (olive oil, avocado, butter, coconut oil), moderate portions of protein (meat, fish, eggs, cheese), and non-starchy vegetables (leafy greens, broccoli, cauliflower, zucchini). Small amounts of nuts, seeds, and low-sugar berries are also generally permitted. The diet was originally developed in the 1920s as a treatment for drug-resistant epilepsy in children and has since been studied for weight loss, blood sugar management, and various metabolic conditions.

What Is the Carnivore Diet?

The carnivore diet is an elimination-style eating plan that restricts food intake to animal products only. In its strictest form, this means meat, fish, eggs, and animal fats — with no vegetables, fruits, grains, nuts, seeds, or plant-based oils of any kind. Some followers include dairy products like butter, cheese, and heavy cream; others restrict dairy as well, particularly if they’re using the diet to address suspected food sensitivities.

Because animal products contain virtually zero carbohydrates, people on a strict carnivore diet are typically in ketosis by default — making carnivore functionally a subset of keto, though the philosophies differ. Carnivore dieters generally don’t track macronutrient ratios. Instead, the approach relies on a simple rule: if it came from an animal, eat it; if it didn’t, skip it.

The carnivore diet has gained significant popularity through anecdotal reports of improved digestion, reduced joint pain, weight loss, and relief from autoimmune symptoms. However, it’s important to note that clinical research specifically on the carnivore diet remains very limited — most existing evidence comes from case reports, surveys of self-selected dieters, and studies on closely related ketogenic protocols rather than large-scale controlled trials.

Side-by-Side Comparison: Keto vs Carnivore

Understanding how these two diets differ across key categories helps clarify which approach might suit you better:

Carbohydrate intake: Keto allows 20–50g of net carbs per day, primarily from vegetables, nuts, and small amounts of berries. Carnivore aims for essentially zero carbs by eliminating all plant foods.

Fat sources: Keto draws fat from both plant and animal sources — olive oil, avocado oil, coconut oil, butter, cheese, nuts, and fatty meats. Carnivore relies entirely on animal fats: beef tallow, lard, butter, fatty cuts of meat, and egg yolks.

Protein levels: Keto keeps protein moderate (roughly 20–35% of calories) to avoid excess protein being converted to glucose through gluconeogenesis. Carnivore tends to be higher in protein since meat is the primary food, though fattier cuts help balance the ratio.

Vegetables and fiber: Keto includes non-starchy vegetables as a significant part of most meals, providing fiber, vitamins, and minerals. Carnivore eliminates all plant fiber, which proponents argue may actually benefit people with certain digestive sensitivities — though this remains a point of active scientific debate.

Food variety: Keto offers considerably more variety — different vegetables, nuts, seeds, oils, low-carb fruits, and a wide range of cooking styles. Carnivore is intentionally narrow, which some people find simplifying and others find restrictive.

Tracking requirements: Keto typically requires some degree of macro tracking, at least initially, to ensure carbs stay low enough for ketosis. Carnivore is self-regulating by nature — if you only eat animal products, you don’t need to count much of anything.

Research base: Keto has a substantially larger body of clinical research, including multiple randomized controlled trials and meta-analyses for weight loss, epilepsy, type 2 diabetes, and metabolic syndrome. Carnivore research is still in early stages, consisting mainly of case series, self-reported surveys, and extrapolation from ketogenic diet studies.

Sample 7-Day Keto Meal Plan

This sample week illustrates the variety available on a standard keto diet. Each day stays under approximately 25g of net carbs while providing a balance of healthy fats, moderate protein, and nutrient-dense vegetables.

Day 1

Breakfast: Scrambled eggs cooked in butter with sautéed spinach and half an avocado
Lunch: Grilled chicken thighs over mixed greens with olive oil dressing, cucumber, and feta cheese
Dinner: Pan-seared salmon with roasted broccoli and cauliflower tossed in avocado oil
Snack: A handful of macadamia nuts

Day 2

Breakfast: Full-fat Greek yogurt with a tablespoon of chia seeds and a few raspberries
Lunch: Tuna salad made with avocado mayo, wrapped in large romaine lettuce leaves
Dinner: Grass-fed beef burger patties (no bun) with sautéed mushrooms, melted cheddar, and a side salad
Snack: Celery sticks with almond butter

Day 3

Breakfast: Two-egg omelet with bell peppers, onions, and goat cheese cooked in coconut oil
Lunch: Leftover salmon from Day 1 over a bed of arugula with lemon-olive oil dressing
Dinner: Slow-cooker pulled pork with coleslaw made from shredded cabbage and a creamy keto dressing
Snack: Cheese sticks and a few olives

Day 4

Breakfast: Bacon and eggs with a side of sliced avocado
Lunch: Chicken Caesar salad (no croutons) with parmesan and a full-fat Caesar dressing
Dinner: Shrimp stir-fry with zucchini noodles, bell peppers, and a garlic butter sauce
Snack: Pork rinds with guacamole

Day 5

Breakfast: Keto smoothie made with coconut milk, a handful of spinach, almond butter, and cocoa powder
Lunch: Cobb salad with hard-boiled eggs, bacon, avocado, blue cheese, and grilled chicken
Dinner: Lamb chops with roasted asparagus and a side of herbed butter
Snack: A small portion of walnuts and a few blackberries

Day 6

Breakfast: Cream cheese pancakes (eggs + cream cheese, pan-fried in butter) with a few sliced strawberries
Lunch: Leftover pulled pork from Day 3 over cauliflower rice with melted cheese
Dinner: Baked chicken thighs with a creamy garlic parmesan sauce and steamed green beans
Snack: Hard-boiled eggs with everything bagel seasoning

Day 7

Breakfast: Smoked salmon with cream cheese, capers, and cucumber slices
Lunch: Ground beef taco bowl with lettuce, sour cream, cheese, salsa, and avocado (no rice or tortilla)
Dinner: Pork tenderloin with roasted Brussels sprouts and a drizzle of balsamic vinegar
Snack: A small handful of pecans

Sample 7-Day Carnivore Meal Plan

This sample week shows how to structure a carnivore diet with enough variety to keep meals interesting despite the narrower ingredient list. Portions should be adjusted based on hunger and individual caloric needs — most carnivore practitioners eat to satiety rather than tracking specific amounts.

Day 1

Breakfast: Bacon and eggs fried in butter
Lunch: Grilled ribeye steak with a side of bone broth
Dinner: Roasted chicken thighs with crispy skin
Snack: Beef jerky (no sugar added)

Day 2

Breakfast: Three-egg omelet with cheddar cheese and ground sausage
Lunch: Smoked salmon with cream cheese
Dinner: Pan-seared lamb chops cooked in tallow
Snack: Hard-boiled eggs

Day 3

Breakfast: Ground beef patties with fried eggs on top
Lunch: Sardines in olive oil (some carnivore followers allow this) with a cup of bone broth
Dinner: Slow-roasted pork shoulder
Snack: Pork rinds

Day 4

Breakfast: Scrambled eggs cooked in beef tallow with crumbled bacon
Lunch: Leftover pork shoulder, sliced and reheated
Dinner: Grilled New York strip steak with butter melted on top
Snack: Sliced deli turkey rolled around cheese sticks

Day 5

Breakfast: Sausage links with soft-scrambled eggs in butter
Lunch: Chicken drumsticks with crispy skin
Dinner: Pan-seared shrimp in garlic butter with a grilled beef patty
Snack: Bone broth

Day 6

Breakfast: Steak and eggs — leftover strip steak sliced thin with fried eggs
Lunch: Canned tuna mixed with egg yolk and a small amount of butter
Dinner: Roasted whole chicken (eat the skin, thigh meat, and drippings)
Snack: Beef liver crisps (thinly sliced liver, pan-fried until crispy)

Day 7

Breakfast: Bacon, eggs, and a small portion of liverwurst
Lunch: Smoked brisket
Dinner: Pan-seared salmon with a butter sauce
Snack: Collagen-rich bone broth or a handful of pork rinds

Benefits of the Keto Diet

The ketogenic diet has a substantially larger evidence base than the carnivore diet, including findings from randomized controlled trials and systematic reviews. Based on current research, a well-planned keto diet may support:

Weight loss: A 2025 meta-analysis of 174 randomized trials with over 11,000 participants found that low-carbohydrate diets, including keto, tended to produce greater weight loss than higher-carbohydrate approaches. The combination of appetite suppression from ketosis, reduced insulin levels, and increased fat oxidation appears to drive this effect.

Blood sugar and insulin management: Multiple trials have demonstrated improvements in hemoglobin A1c, fasting blood glucose, and insulin sensitivity among people with type 2 diabetes following a ketogenic diet — particularly within the first 3–6 months. Some participants have been able to reduce or discontinue diabetes medications under medical supervision.

Improved lipid markers: Keto is commonly associated with increased HDL cholesterol and reduced triglycerides. Effects on LDL cholesterol vary between individuals, which is why regular blood work is recommended.

Neurological applications: The keto diet remains a guideline-supported treatment for drug-resistant epilepsy and is being actively researched for potential applications in Alzheimer’s disease, Parkinson’s disease, and other neurodegenerative conditions — though clinical evidence in those areas remains preliminary.

Broader food variety and nutrient coverage: Because keto includes vegetables, nuts, seeds, and some fruit, it provides a wider range of vitamins, minerals, antioxidants, and dietary fiber than carnivore — making it easier to meet micronutrient needs without supplementation.

Benefits of the Carnivore Diet

The carnivore diet has far less formal clinical research behind it, but emerging case reports and preliminary studies — combined with widespread anecdotal evidence — suggest several potential advantages for specific populations:

Radical simplicity in meal planning: With no macro tracking, carb counting, or ingredient lists to manage, the carnivore diet removes virtually all decision fatigue around food. For people who find even keto’s level of planning overwhelming, this simplicity can significantly improve adherence.

Potential relief for autoimmune and inflammatory conditions: A 2024 case series published in Frontiers in Nutrition reported on 10 patients with inflammatory bowel disease (both ulcerative colitis and Crohn’s disease) who achieved clinical improvement on a carnivore-ketogenic diet, with some maintaining remission for extended periods. The mechanism likely involves eliminating plant-based compounds — such as lectins, oxalates, and FODMAPs — that may trigger immune responses in susceptible individuals. However, no randomized controlled trials exist yet for the carnivore diet in any autoimmune condition, so these findings remain preliminary.

Digestive improvement for some individuals: People with conditions like IBS, SIBO, or chronic bloating sometimes report significant relief after removing all plant fiber and plant-based irritants. This is counterintuitive given the conventional emphasis on dietary fiber, but may make sense for individuals whose digestive systems react poorly to specific plant compounds.

Elimination diet utility: Because it removes so many potential food triggers simultaneously — grains, legumes, processed foods, seed oils, sugar, and all plant antigens — the carnivore diet can serve as a starting point for identifying which foods cause problems. Some practitioners follow strict carnivore for 30–90 days and then systematically reintroduce foods to pinpoint sensitivities.

Natural appetite regulation: High protein intake is the most satiating macronutrient, and many carnivore dieters report eating fewer total calories without consciously restricting — leading to weight loss as a secondary effect rather than a primary goal.

Risks and Trade-Offs: Keto

While keto is generally well-supported by short-term research, there are important considerations:

Keto flu: The first 3–7 days often bring headaches, fatigue, brain fog, and irritability as the body transitions from glucose to ketone-based energy. Proactive electrolyte management (sodium, potassium, magnesium) and adequate hydration significantly reduce these symptoms for most people.

Nutrient gaps: Restricting fruits, whole grains, and legumes can reduce intake of vitamin C, certain B vitamins, potassium, and fiber. Prioritizing nutrient-dense vegetables and considering targeted supplementation helps, but requires ongoing attention.

Long-term sustainability: Many people find strict keto difficult to maintain beyond several months. The restriction of entire food groups can affect social dining, meal variety, and enjoyment. Some research suggests that cycling between keto and a less restrictive low-carb approach may help maintain results while improving adherence.

Variable LDL cholesterol response: While keto often improves HDL and triglycerides, some individuals experience significant LDL increases. Regular lipid panels are important, especially in the first year.

Risks and Trade-Offs: Carnivore

The carnivore diet’s more extreme restriction brings additional considerations beyond those shared with keto:

Very limited clinical evidence: No randomized controlled trials have been conducted on the carnivore diet for any health condition. The evidence that does exist comes from case reports, uncontrolled case series, and self-reported surveys. This doesn’t mean the diet can’t work — but it does mean the long-term safety profile is essentially unknown.

Potential nutrient deficiencies: A 2025 nutrient analysis published in Nutrients assessed four versions of the carnivore diet and found shortfalls in several micronutrients compared to national reference values — including vitamin C, calcium, manganese, and fiber. Organ meats like liver can help address some of these gaps, but not all carnivore dieters include them regularly.

Cardiovascular concerns: Some carnivore dieters develop a lipid pattern called the “lean mass hyper-responder” phenotype, characterized by very high LDL cholesterol alongside high HDL and low triglycerides. The cardiovascular implications of this pattern are still debated in the research community, but LDL levels in the 300–500+ mg/dL range have been documented in some cases and warrant monitoring.

Gut microbiome impact: Eliminating all dietary fiber removes the primary fuel source for many beneficial gut bacteria. While some carnivore proponents argue that ketone body beta-hydroxybutyrate may partially compensate, the long-term effects of a fiber-free diet on microbiome diversity are not well understood.

Social and practical challenges: Eating only animal products can make restaurant dining, family meals, and social gatherings significantly more complicated than even a standard keto approach.

Who Might Do Better on Keto?

Keto tends to be a stronger fit for people who value food variety and enjoy cooking with diverse ingredients. It’s also more appropriate for those with specific goals and circumstances:

• You want a low-carb approach with a substantial evidence base and established safety profile
• You enjoy vegetables, nuts, seeds, and a wide range of flavors and cuisines
• You’re managing type 2 diabetes or metabolic syndrome and want a well-researched dietary framework
• You prefer to track macros and have precise control over your nutritional intake
• You want a diet that’s more socially flexible for dining out and sharing meals with others
• Long-term sustainability matters more to you than maximum simplicity

Who Might Do Better on Carnivore?

The carnivore diet may be worth exploring — ideally under medical guidance — for people in specific situations:

• You have autoimmune or chronic inflammatory conditions that haven’t responded well to other dietary approaches, and you want to try a comprehensive elimination protocol
• You experience significant digestive issues (IBS, bloating, SIBO) that seem to worsen with plant foods, fiber, or high-FODMAP ingredients
• You find macro tracking and complex meal planning stressful or unsustainable, and the radical simplicity of an all-animal approach appeals to you
• You’ve tried keto but still struggled with food cravings or couldn’t stay in ketosis consistently due to carb creep
• You’re interested in using carnivore as a short-term elimination diet (30–90 days) to identify food sensitivities before reintroducing plants strategically

Can You Combine Keto and Carnivore? The Ketovore Approach

A growing number of people follow what’s sometimes called a “ketovore” diet — essentially a carnivore-leaning keto approach that’s primarily animal-based but includes small amounts of low-carb plant foods. This might look like a plate that’s 80–90% meat, eggs, and animal fats, with a small side of steamed broccoli, a few avocado slices, or some fermented vegetables.

The appeal of ketovore is that it captures many of the simplicity and elimination benefits of carnivore while reintroducing enough plant foods to address potential micronutrient gaps — particularly vitamin C, potassium, and fiber. It also provides more flexibility for social meals and long-term adherence.

For many people, ketovore functions as either a transition step into or out of strict carnivore, or as a sustainable long-term middle ground between the two approaches.

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Frequently Asked Questions

Is the carnivore diet just a type of keto?

Functionally, yes — because the carnivore diet contains virtually zero carbohydrates, most people following it are in ketosis by default. However, the dietary philosophy is different. Keto focuses on achieving and maintaining ketosis through specific macronutrient ratios. Carnivore focuses on eating exclusively animal products, and ketosis is a natural byproduct rather than the stated goal. Carnivore also tends to be higher in protein than most standard keto approaches.

Which diet is better for weight loss?

Both can be effective. Keto has more clinical evidence supporting its use for weight loss, including large meta-analyses. Carnivore often produces faster initial results due to its extreme simplicity and high protein content, which promotes satiety. However, long-term weight maintenance depends on adherence, and the “better” diet is whichever one you can realistically sustain.

Will I get scurvy on the carnivore diet?

Clinical scurvy from the carnivore diet appears to be extremely rare, though it’s a common concern. One proposed explanation is that vitamin C and glucose compete for the same cellular transport pathways — so when glucose intake drops to near zero, the body’s vitamin C requirements may also decrease. Fresh meat, particularly organ meats like liver, also contains small but bioavailable amounts of vitamin C. That said, vitamin C levels on a strict carnivore diet may be lower than optimal for some individuals, and long-term data is lacking.

Can I exercise on both diets?

Yes, though there’s an adaptation period of 2–4 weeks on either diet as your body shifts to fat and ketone-based fuel. Low-to-moderate intensity exercise generally adapts faster than high-intensity training. Carnivore dieters may have a slight advantage for strength training due to higher protein intake, while keto’s inclusion of targeted carbs around workouts (called “targeted keto”) gives athletes more flexibility for performance optimization.

What if I want to try carnivore but I’m nervous about long-term effects?

A common approach is to use strict carnivore as a 30–90 day elimination protocol rather than a permanent lifestyle. This gives you time to assess how you feel, whether symptoms improve, and how your body responds — while limiting exposure to the unknown long-term effects. After the elimination phase, many people transition to a ketovore or standard keto approach, reintroducing plant foods one at a time to identify any that cause problems.

Do I need to take supplements on either diet?

On keto, electrolyte supplementation (sodium, potassium, magnesium) is important, especially in the first few weeks. Beyond that, most micronutrient needs can be met through food if you include plenty of vegetables and diverse protein sources. On carnivore, supplementation needs are less clear-cut but potentially greater — magnesium, potassium, and vitamin C are the most commonly cited concerns. Including organ meats and bone broth can reduce but may not fully eliminate gaps. Regular blood work is the most reliable way to identify individual deficiencies on either approach.

Which diet is more affordable?

Keto can be very budget-friendly because eggs, ground beef, chicken thighs, butter, and frozen vegetables are all inexpensive. Carnivore grocery bills depend heavily on the cuts you choose — ground beef, chicken thighs, and eggs are affordable, while relying on ribeye steaks and premium cuts adds up quickly. Carnivore may save money on the plant side (no vegetables, fruits, or nuts to buy), but total food costs tend to be similar or slightly higher due to the volume of animal protein consumed.

Key Takeaways

• Keto and carnivore are both low-carb diets that can achieve ketosis, but keto includes plant foods (vegetables, nuts, seeds, berries) while carnivore eliminates them entirely
• Keto has a substantially larger evidence base from randomized controlled trials, while carnivore research remains limited to case reports and self-reported surveys
• Keto offers more food variety, broader nutrient coverage, and greater social flexibility — making it more sustainable long-term for most people
• Carnivore’s radical simplicity eliminates decision fatigue and may benefit people with autoimmune conditions, food sensitivities, or digestive issues that haven’t responded to other approaches
• The “ketovore” approach — primarily animal-based with small amounts of low-carb plants — offers a middle ground that captures benefits of both
• Both diets require attention to electrolytes, hydration, and regular blood work to monitor for potential nutrient gaps or lipid changes
• Neither diet is appropriate for everyone — consult a healthcare provider before making significant dietary changes, especially if you take medications or have existing health conditions

If you’re ready to start either approach with a structured plan, our Etsy shop offers printable meal plan PDFs for both diets — complete with daily meals, recipes, grocery lists, and food guides. Browse our keto meal plans for options including standard keto, clean keto, lazy keto, vegetarian keto, and vegan keto. For carnivore, we have 28-day carnivore diet plans for beginners, women, budget-conscious shoppers, and a keto carnivore (ketovore) plan for those who want the best of both worlds. You can also explore our full catalog of meal plan PDFs covering over 40 dietary needs.

Disclaimer: The information in this article is for educational purposes only and is not intended as medical advice. Before starting any new diet — particularly one that significantly restricts food groups — consult with a qualified healthcare provider or registered dietitian. Individual dietary needs vary based on health conditions, medications, activity level, and personal goals. Only a qualified professional can provide personalized guidance for your specific situation.