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Keto Vs. Low-Carb Diet: Differences And Which One To Choose

Keto and low-carb diets differ in approach but share benefits for weight loss and health. Learn their differences and which suits your needs best in this guide.

By KetoFuse Staff Updated on
An image of the difference between keto and low carb diet.
An image of the difference between keto and low carb diet.

When exploring diet options, keto and low-carb diets are two of the most popular choices that come up. This is especially true for people who want to lose weight quickly. Both the keto diet and low-carb diets focus on cutting carbs. However, there are key differences between these diet types and their outcomes..

If you’re wondering what the key difference between keto and low-carb, diets is, we’ve got you covered. You may wonder, “Is low carb better than keto?” Well, there’s no “better” diet. Which you should choose depends on what you’re trying to achieve..

In this guide, we’ll break down what each diet requires, their unique nutritional values, and the specific benefits they offer..

After reading this, you'll know how to decide between keto and low-carb diets based on your goals (weight loss, managing diabetes, or simply starting a diet that is sustainable). Keep reading to understand how each diet works and which is best for you.

Key Takeaways

  • The keto and low carb diet both limit carbs but to different extents; keto is more restrictive.
  • Keto vs low-carb for fast weight loss often favors keto, as it induces ketosis, a state that uses fat for energy.
  • Understanding how keto differs from low-carb can help you choose diets that align with your health goals.
  • Low-carb vs keto for diabetes may depend on individual needs, but both can help to manage blood sugar.

What are the Keto and Low-Carb Diets?

Keto and low-carb diets might sound similar at first, but they differ in terms of how much carbs you can consume and how the body responds to them.

The keto diet (short for ketogenic) is a high-fat, moderate protein, and very low carbohydrate plan. The goal is to limit carbs to such a low level that the body enters a state called ketosis, where it primarily burns fat instead of carbs for fuel. This process often results in noticeable weight loss[1].

On the other hand, a low-carb diet generally allows more carbohydrates than keto. Rather than aiming for ketosis, a low-carb diet focuses on reducing total carb intake without the strict limits found in keto.

While it can still aid weight loss (especially when combined with healthy food choices) it is less restrictive and can be easier for beginners. This difference makes the choice between a low-carb diet vs keto a personal one, depending on how comfortable you feel with dietary restrictions and your goals

Keto Vs Low Carb Diet Intake

One of the main differences between keto and low carb lies in the amount of carbs allowed in each diet. The keto diet restricts carb intake to around 5-10% of daily calories, usually keeping it under 50 grams per day. This limit is necessary to keep the body in ketosis, where fat becomes the primary energy source.

In contrast, low-carb diets allow a broader range of carbs, often ranging from 50 to 150 grams[2] daily. This approach offers flexibility and makes it easier to incorporate more types of food, especially vegetables and certain fruits.

The choice between low carb and keto often comes down to how strict you need to be with carb restrictions. If you’re aiming for ketosis and quicker fat burning, keto may be more effective. But if you’re looking for a sustainable reduction in carbs that’s easier to maintain, low-carb could be the better option.

Nutritional Focus

An image for keto vs low calorie nutritional focus An image for keto vs low calorie nutritional focus

The nutritional emphasis on keto and low-carb diet also sets them apart. The keto diet prioritizes high fat intake, usually between 70-80% of total calories[3], with moderate protein and very low carbs.

This unique setup helps push the body into ketosis, using fat instead of carbs for fuel. For those comparing keto vs low calorie or other diets, keto’s high fat intake is a distinct feature.

Meanwhile, a low-carb diet is more flexible with macronutrient distribution. While carbs are still limited, there’s no specific target for fats or proteins. This makes it easier for people to adapt the diet to their personal tastes.

The flexibility often makes a low carbohydrate diet appealing for beginners, as it can feel less restrictive than keto while still supporting weight loss and other health goals.

Weight Loss Benefits

When it comes to keto vs low-carb for fast weight loss, both diets can support weight loss, but they work in different ways. The keto diet often leads to more rapid weight loss initially. By restricting carbs to very low levels, the body enters ketosis, which can lead to a quicker reduction in body fat.

This process is one reason people see keto as a faster route to weight loss, especially in the early stages. On the other hand, a low carb diet can still be effective for weight loss, though results may be slower compared to keto.

It reduces carbs without entering ketosis which can decrease total calorie intake. This often results in steady weight loss over time. Many people find the low-carb diet easier to stick with in the long term, especially when balanced with other food groups.

Other Health Benefits

Beyond weight loss, both the keto and low-carb diets can offer health benefits, particularly for managing certain conditions.

Here’s a breakdown of the key benefits each diet may provide:

Keto Diet:

  • May improve blood sugar control, especially valuable for those with type 2 diabetes.
  • Has potential neurological benefits of ketosis which may positively affect brain function.
  • Some research suggests it may reduce inflammation, which can be beneficial for certain health conditions.

Low-Carb Diet:

  • Helps stabilize blood sugar by limiting carb intake, which can support diabetes management.
  • Provides flexibility with food choices, often making it easier for beginners to adopt and maintain.
  • Supports steady energy levels by reducing sugar dependence, it encourages the body to rely more on fats and proteins.

Potential Challenges and Side Effects

While both keto and low carb diets offer benefits, they also come with some challenges and potential side effects that are important to consider.

Keto Diet:

  • Keto flu: In the first week, many experience “keto flu,” a temporary set of symptoms like headache, fatigue, and irritability, as the body adjusts to ketosis.
  • Digestive issues: Low fiber intake from limited carbs can cause constipation for some people on keto.
  • Restrictiveness: Maintaining a very low carb intake can be challenging, particularly in social settings or when dining out.

Low-Carb Diet:

  • Potential for nutrient gaps: Depending on food choices, a low-carb diet might lack fiber and certain vitamins found in carb-rich foods, like fruits and whole grains.
  • Less Rapid Weight Loss: Weight loss on a low-carb diet may be slower than on keto, which can feel less motivating for those seeking quick results.
  • Reduced Energy for Intense Exercise: Fewer carbs can sometimes mean less energy for high-intensity workouts, especially in the early stages.
  • Potential for Increased Cravings: Since low carb doesn’t require full ketosis, some people may find they still craving carbs or sugar.
  • Sustainability: While less restrictive than keto, a low-carb diet may still feel limiting for those used to a higher carb intake.

Choosing the Right Diet

Deciding between keto vs low carb ultimately depends on your personal goals, lifestyle, and how comfortable you are with dietary restrictions. If fast weight loss or specific metabolic changes are a priority, the keto diet may be effective due to its focus on ketosis.

However, it requires a high level of commitment to keep carbs at a minimum. For those seeking flexibility and a balanced approach, a low-carbohydrate diet might be a better fit.

It allows for a broader range of foods, which makes it easier to maintain long-term, especially for beginners. This diet can also be adapted over time, so it may make it more appealing if you prefer a gradual approach to weight management or are looking atlow-carb vs keto for diabetes management.

Ultimately, the choice between keto and low-carb for beginners or experienced dieters should align with your goals and what feels sustainable. Consulting with a healthcare professional can also provide guidance on which approach may be better suited to your health needs.

References

  1. Dowis K, Banga S. The Potential Health Benefits of the Ketogenic Diet: A Narrative Review. Nutrients. 2021 May 13;13(5):1654. doi: 10.3390/nu13051654. PMID: 34068325; PMCID: PMC8153354.https://pmc.ncbi.nlm.nih.gov/articles/PMC8153354/
  2. Oh R, Gilani B, Uppaluri KR. Low-Carbohydrate Diet. 2023 Aug 17. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan–. PMID: 30725769. https://pubmed.ncbi.nlm.nih.gov/30725769/
  3. Szendi K, Murányi E, Hunter N, Németh B. Methodological Challenges and Confounders in Research on the Effects of Ketogenic Diets: A Literature Review of Meta-Analyses. Foods. 2024 Jan 12;13(2):248. doi: 10.3390/foods13020248. PMID: 38254549; PMCID: PMC10814162. https://pmc.ncbi.nlm.nih.gov/articles/PMC10814162/#:~:text=According%20to%20the%20Harvard%20University,grams%20of%20protein%20%5B21%5D