Low Carb Diet: Everything you need to know about the low-carbohydrate diet

Low-carb diet: A thorough look at the popular diet

Introduction: What does Low Carb mean?

The low-carb diet, short for carbohydrate-reduced diet, has gained considerable popularity in recent years. But what exactly is it? Essentially, it involves drastically reducing the intake of carbohydrates—our body's primary energy source—and instead increasing the proportion of protein and healthy fats. The goal is to shift the body's metabolism so that it uses fat instead of carbohydrates for energy. This can offer various benefits, from weight loss to improved blood sugar control.

There are various forms of low-carb diets, ranging from moderately low-carbohydrate to very strict forms such as the ketogenic diet . While the exact definition of "low-carb" can vary, the focus is always on reducing foods such as bread, pasta, rice, potatoes, sugar, and sugary drinks [1].

In a traditional diet, carbohydrates typically provide 50–60% of energy. A low-carb diet significantly reduces this percentage, to between 10–30% depending on the specific variation.

The focus is instead on:

Protein (e.g., meat, fish, eggs, dairy products, legumes)
Healthy fats (e.g., avocado, nuts, olive oil, coconut oil)
Vegetables (especially green, high-fiber varieties with little starch)

Unlike the keto diet, which sets a strict limit of approximately 20–50 g of carbohydrates per day, the low-carb diet is more flexible. Depending on the goal (weight loss, muscle building, healthy eating), up to 100–150 g of carbohydrates may be allowed.

The science behind low-carb: How does it work?

The human body primarily obtains energy from carbohydrates, which are converted into glucose. This glucose serves as a readily available fuel for cells and organs. However, when carbohydrate intake is severely reduced, the body resorts to alternative energy sources. This process is called ketosis, in which the liver converts fats into ketone bodies, which then serve as an energy source. This is particularly relevant in very low-carbohydrate diets such as the ketogenic diet [2].

A key mechanism of the low-carb diet is the stabilization of blood sugar levels. Carbohydrates, especially simple carbohydrates, lead to a rapid rise in blood sugar and increased insulin secretion. Insulin is a hormone that lowers blood sugar but also promotes fat storage. By reducing carbohydrates, blood sugar and insulin levels remain more stable, which can prevent cravings and promote fat burning [3].

Benefits of a low-carb diet

Scientific research has revealed several potential benefits of a low-carb diet:

1. Weight management

Many studies show that low-carb diets, especially in the first 6 to 12 months, can lead to faster and more effective weight loss than low-fat diets [4, 5]. This is often due to the increased satiety provided by proteins and fats, as well as the reduction of cravings due to more stable blood sugar levels. Furthermore, the body can break down body fat more efficiently by switching to fat burning.

2. Blood sugar control and diabetes management

For people with type 2 diabetes or insulin resistance, a low-carbohydrate diet can be particularly beneficial. The reduced carbohydrate intake has less of an impact on blood glucose levels, which can lead to better glycemic control. Some studies suggest that low-carb diets may even help improve insulin sensitivity and reduce the need for diabetes medication [6, 7].

3. Cardiovascular health

Although the effects of low-carbohydrate diets on cardiovascular health are controversial, some studies show positive effects. A low-carbohydrate diet can lead to improvements in risk factors such as triglyceride levels, HDL cholesterol (the “good” cholesterol), and blood pressure [8, 9]. However, it is important to pay attention to the type of fats consumed and to consume saturated fats in moderation.

4. Improved energy and cognition

Some proponents of a low-carb diet report improved energy and mental clarity. This is often attributed to stable blood glucose levels and a constant energy supply from ketone bodies, which the brain can use efficiently [10].

Potential disadvantages and misunderstandings

Like any diet, low-carb diets also have potential disadvantages and are associated with some misunderstandings:

1. Nutrient deficiency

A poorly planned low-carb diet can lead to a deficiency in essential nutrients, especially if whole grains and certain fruits and vegetables are omitted. It is crucial to consume a variety of low-carbohydrate foods to ensure adequate intake of vitamins, minerals, and fiber.

2. Initial symptoms (“keto flu”)

Especially at the beginning of a very low-carbohydrate or ketogenic diet, symptoms such as fatigue, headaches, nausea, and irritability can occur, known as the "keto flu." These symptoms are often due to metabolic changes and electrolyte imbalances and usually subside after a few days.

3. Long-term effects

The long-term effects of a strict low-carb diet are still the subject of research. While short- and medium-term benefits are well-documented, there is less data on very long periods. A balanced and sustainable diet is always key to long-term health.

Low-carb in everyday life: What to eat?

A low-carb diet doesn't mean giving up enjoyment. On the contrary, it opens up new possibilities for preparing nutritious and tasty meals.

Here are some foods that are typically included in a low-carb diet:

Proteins: Meat (beef, poultry, pork), fish (salmon, tuna), eggs, cheese, tofu.
Healthy fats: avocado, olive oil, coconut oil, nuts, seeds.
Non-starchy vegetables: leafy greens (spinach, kale), broccoli, cauliflower, zucchini, bell peppers.
Berries: Berries such as strawberries, blueberries and raspberries are allowed in moderation.

Foods that are generally avoided or greatly reduced:

Grain products (bread, pasta, rice)
potatoes
Sugar and sugary drinks
Pulses (in larger quantities)
Starchy vegetables (corn, peas)

Scientific background

Studies have extensively investigated the low-carb diet. The most important scientific effects are:

Stabilizing blood sugar
Fewer carbohydrates mean less fluctuation in blood sugar levels. This reduces cravings and improves insulin sensitivity.
Fat burning
When insulin levels drop, the body increasingly uses stored fat for energy. This is why the low-carb diet is often used successfully for weight loss.
Improved blood values
Studies show that low-carb diets can lower triglycerides and increase "good" HDL cholesterol.
Flexibility in everyday life
Unlike keto, low carb is easier to implement because not every meal needs to be strictly monitored.

Frequently asked questions about the low-carb diet

Are lentils low in carbs?

A frequently asked question is: Are lentils low in carbs?
The answer: Lentils contain about 20g of carbohydrates per 100g (cooked). They provide plenty of plant-based protein and fiber, but they are not suitable for strict keto recipes. However, they can be included in small amounts in a moderate low-carb diet.

Is a low-carb diet healthy?

Yes, numerous studies confirm positive effects – especially for obesity, type 2 diabetes, and metabolic disorders. It's important to balance your diet with sufficient fiber, vitamins, and healthy fats.

How quickly can you lose weight with a low-carb diet?

Many people lose several kilos in the first few weeks – initially through water loss, later through fat loss. However, the calorie balance remains crucial.

Delicious low-carb dishes for everyday life

The greatest strength of the low-carb diet: With a little creativity, it can be made very varied. Here's an overview of popular low-carb recipes :

1. Low-carb dinner

A simple, protein-rich dinner keeps you full and supports fat burning. Examples:

Grilled salmon with roasted vegetables and herb butter
Zucchini noodles with pesto and chicken strips
Steak with broccoli and Parmesan

2. Low Carb Pizza

The classic pizza base is replaced with a crust made from cauliflower, zucchini, or almond flour. This creates a crispy, low-carb pizza that contains hardly any carbohydrates but is just as delicious.

3. Low Carb Cake

Sweets are allowed too: Low-carb cakes are baked with almond flour or coconut flour and sweetened with erythritol or xylitol. Cheesecake, chocolate cake, or small muffins are popular choices.

4. Keto Bread

Many people who don't want to give up bread bake their own keto bread – made from flaxseeds, chia seeds, or almond flour. It fits perfectly into both keto and low-carb diets.

Differences between Low Carb and Keto

Many people equate low carb and keto – but there are differences:

Low carb diet: More flexible, up to 150g of carbohydrates possible, suitable for everyday life.
Keto diet: Strict, maximum 20–50 g carbohydrates, the goal is ketosis.
Keto recipes are therefore an extremely strict subcategory of low-carb dishes.

Both diets have their advantages – however, the low-carb option is particularly suitable for beginners or people who are looking for a sustainable diet in the long term.

Common mistakes and challenges with low-carb diets

Too little vegetables : Low carb does not mean no carb – low-fiber vegetables are important for digestion.
Too much protein : An excess can strain the liver and slow down weight loss.
Hidden sugars : Many processed foods contain "bad" carbohydrates, even though they appear healthy.
No preparation : Without planning, it's difficult to have suitable low-carb meals readily available.

Low carb and sport

A common concern: Lack of energy during training?

In the short term, performance may decrease because less glucose is available.
In the long term, however, the body adapts and can use fat more efficiently for energy production.
Small amounts of carbohydrates (e.g. from berries or nuts) can be beneficial before intense workouts.

Buffalo Jerky: The ideal low carb snack

Whether you're following a keto or low-carb diet, snacks are often the biggest challenge. Many "fitness bars" contain sugar or starch.

Buffalo jerky is an ideal solution:

0–2 g carbohydrates per serving – absolutely suitable for low-carb diets
Rich in protein – keeps you full for a long time and supports the muscles
On the go, in the office or while playing sports – practical and delicious

Try our high-quality Buffalo Jerky now – the perfect snack for your low-carb diet!

Conclusion

The low-carb diet is a flexible, scientifically proven way of eating that can help with weight loss, blood sugar stabilization, and increased energy. With creative low-carb recipes like pizza, cakes, or keto bread, it remains enjoyable and practical for everyday life.

Whether for a low-carb dinner, during training or in between – with the right selection of foods and snacks like Buffalo Jerky, nothing stands in the way of successful implementation.

References

[1] BARMER. (2024). How healthy is the low-carb diet? Available at: https://www.barmer.de/gesundheit-verstehen/leben/ernaehrung/low-carb-ernaehrung-1003314

[2] StatPearls. (n.d.). Low-Carbohydrate Diet . Available at: https://www.ncbi.nlm.nih.gov/books/NBK537084/

[3] NDR. (2022). Low Carb: Eat healthier with fewer carbohydrates . Available at: https://www.ndr.de/ratgeber/kochen/Low-Carb-Welche-Lebensmittel-sind-erlaubt,lowcarb106.html

[4] Mayo Clinic. (nd). Low-carb diet: Can it help you lose weight? Available at: https://www.mayoclinic.org/healthy-lifestyle/weight-loss/in-depth/low-carb-diet/art-20045831

[5] Harvard TH Chan School of Public Health. (n.d.). Low-Carbohydrate Diets . Available at: https://nutritionsource.hsph.harvard.edu/carbohydrates/low-carbohydrate-diets/

[6] Stanford Medicine. (2019). A skeptical look at popular diets: The lowdown on low carb . Available at: https://med.stanford.edu/news/insights/2019/03/a-skeptical-look-at-popular-diets-the-lowdown-on-low-carb-2.html

[7] Children's Hospital. (2021). In matchup, low-carb diets outperform low-fat diets . Available at: https://answers.childrenshospital.org/low-carb-diet/

[8] Ohio State University. (2024). Low-carb diets are backed by science, supporting health equity . Available at: https://ehe.osu.edu/news/listing/low-carb-diets-are-backed-science-support-health-equity

[9] HRI. (nd). Complete guide to low carb diet & heart health . Available at: https://www.hri.org.au/health/your-health/nutrition/going-low-carb

[10] ZOE. (2024). Low-Carb Diets: What They Are, Benefits, and Risks . Available at: