Date paste has become one of the emblematic ingredients of so-called "natural" energy bars. It is found in many organic, vegan, or artisanal recipes, often promoted as a healthier alternative to glucose syrups or refined sugars.

But behind this natural image lies a real question of performance:
Is it really suitable for all sports? Is it ideal for a marathon, a trail run, or an intense bike ride? Does it affect digestion or blood sugar levels?

To answer objectively, one must analyze both its nutritional profile, its physiological behavior during exercise, and its digestive impact.

What is date paste?

Date paste is made from whole, pitted dates that are simply ground until they reach a smooth, sticky consistency. Unlike syrups, it retains all of the fruit's natural sugars, fiber, minerals, and antioxidants.

Nutritionally, it consists primarily of carbohydrates, representing about two-thirds of its weight. These carbohydrates are made up of a natural mixture of glucose and fructose. This combination is beneficial in sports because these two sugars use different intestinal transporters, which can improve absorption during prolonged exertion.

It also contains dietary fiber. This plays a beneficial role in daily nutrition, but its presence can alter the speed of digestion during exercise.

Why put date paste in energy bars?

The benefits of date paste are not only nutritional. They are also technological.

First, it acts as a natural binder. Its sticky texture allows oat flakes, dried fruit, or plant-based proteins to bind together without the need for industrial texturizing agents. This makes it possible to formulate bars with a shorter and more understandable ingredient list.

Furthermore, it allows for a strong marketing positioning: “sweetened only with fruit” or “100% natural”. In a market where transparency has become essential, this argument is powerful.

Finally, its naturally sweet and caramelized flavor enhances the sensory appeal (palatability) of the bars, especially during long efforts where taste is just as important as energy intake. As I've always said, when the body gives out, it's the mind that takes over and allows you to reach the finish line.

What science says about carbohydrates, dates, and performance

The latest scientific recommendations in sports nutrition indicate that:

• For an effort lasting more than 2h30, the optimal carbohydrate intake is between 60 and 90g of carbohydrates per hour .

• The combination of glucose and fructose allows the oxidation of carbohydrates to increase to 1.5g/minute, compared to approximately 1g/minute with glucose alone.

• Too high a fiber intake during exercise can slow gastric emptying and increase the risk of digestive discomfort.

Date paste naturally contains about 65% carbohydrates, including a significant proportion of glucose and fructose. This makes it a valuable energy source for replenishing glycogen stores during exercise. Many athletes consume fresh or dried dates, much like dried apricots.

Is date paste good for athletic performance?

The answer depends heavily on the context of the effort.

For moderate-intensity, long-duration endurance efforts, such as long trail running, ultra-trail running, long-distance cycling, or hiking, date paste can be a useful option. Its energy release is relatively gradual, its texture is satisfying, and its natural qualities are appreciated when the effort lasts for several hours.

However, during high-intensity efforts such as marathons at a sustained pace, short-distance triathlons, and races with frequent restarts like Hyrox, the presence of fiber can slow gastric emptying. This can cause a feeling of heaviness or digestive discomfort in some sensitive athletes. In any case, it's virtually impossible to chew during this type of event, so energy bars are not as suitable as gels or energy fruit compotes.

In other words, date paste is neither “good” nor “bad”: it is suited to certain effort profiles and less so to others.

What is the glycemic index of date paste?

The glycemic index of dates varies depending on the variety and degree of ripeness. It generally falls between moderate and relatively high. This means that the rise in blood sugar is not as rapid as with pure glucose, but it is not very slow either.

For an athlete, this translates to energy that isn't instantaneous like that of a glucose-rich energy gel, but remains fast enough to sustain continuous effort. The presence of fiber also helps to moderate the glycemic response.

Is date paste digestible during a marathon?

Digestibility depends on individual tolerance and running intensity. During a marathon run at a relatively high intensity, blood flow is diverted to the muscles, making the digestive system more vulnerable. The fiber in date paste can then slow digestion and increase the risk of discomfort.

At a more moderate pace, tolerance is generally better. Many athletes use date-based bars in training without any problems, but prefer faster-acting carbohydrate sources in competition.

It is always advisable to test your nutritional system during training weeks to determine the appropriate products and quantities to consume. This is what is currently called Gut training.

Do date paste bars cause weight gain?

This question comes up often, especially outside of a sporting context.

Date paste remains a concentrated source of carbohydrates. It is energy-dense. However, in the context of regular physical activity, these carbohydrates are used as muscle fuel and help replenish glycogen stores.

Therefore, it is not the ingredient itself that determines weight gain, but the overall balance between energy intake and expenditure.

Date paste or glucose syrup: which is the best option?

Glucose syrup is absorbed more quickly and contains no fiber. It is therefore particularly suitable for periods of very intense exertion or when near-instant energy is needed.

Date paste, on the other hand, provides a slightly more gradual energy release, a denser texture, and a more natural appearance. It is better suited to long and steady efforts.

The choice between the two therefore depends on the nutritional strategy, the type of effort and the product positioning.

Should you choose an energy bar with or without date paste?

The choice should be guided by three criteria: the intensity of the effort, the duration, and personal digestive tolerance.

For an ultra-trail or a long bike ride, a bar containing date paste can be relevant thanks to its natural profile and progressive energy release.

For a fast marathon or a short triathlon, a bar formulated without date paste, with an optimized carbohydrate mix and little fiber, may be more comfortable and perform better.

Choose the bar that suits your performance

If your goal is to:

• maintain stable energy without discomfort
• Optimize your digestion while running
• precisely control your carbohydrate intake
• perform on the big day

Discover Mulebar energy bars, made in France, designed to combine naturalness, effectiveness and digestibility.

• Test them in training.
• Adjust your carbohydrate strategy.
• Arrive on race day with a controlled nutrition plan.

Because in endurance sports, the difference isn't just in the legs.
It also plays out in the stomach.

FAQ – Frequently asked questions about date paste in sports nutrition

Is date paste better than white sugar?
It is less refined and retains micronutrients, but remains primarily a source of carbohydrates.

Can you make a homemade energy bar with date paste?
Yes, it is even the most used ingredient in homemade recipes because of its natural binding power.

Do dates provide energy quickly?
Yes, thanks to glucose and fructose, but not as quickly as a pure glucose-based gel.

Is it suitable for athletes with sensitive stomachs?
It depends on the individual profile. Fibers can be an advantage in everyday life but sometimes a disadvantage at high intensity.