Many endurance athletes use caffeine as part of their energy plan. The question, therefore, is not only what looks most convincing on paper, but what fits best with your body, your sport, and your plan for training and competition.
In this guide, you’ll get a concrete overview of the differences, so you can choose – or combine – caffeine gel and capsules in a way that fits your everyday life, your sessions, and your goals.
Caffeine in sport: Same active ingredient, different tools
Caffeine is one of the most researched ingredients in sports nutrition. Many find that caffeine can help to:
- Contribute to increased alertness and concentration
- Contribute to reducing the perception of fatigue
- Support perceived energy and focus in the final part of a long session or a competition
Much of the research suggests that trained adults often use a total dose around 3–6 mg of caffeine per kg of body weight in connection with competition, depending on individual tolerance. The key factor, therefore, is how much caffeine you get and when you get it, not whether it comes from gel, capsules, or coffee.
The difference between caffeine gel and caffeine capsules primarily comes down to:
- How much carbohydrate you get together with the caffeine
- How easy the product is to consume when your heart rate is high
- How your stomach reacts to the different formats
- How precisely you want to control your caffeine dose
Caffeine gel as energy and caffeine in one solution
A caffeine gel typically combines fast-absorbing carbohydrates with caffeine. That makes the format relevant for cycling, running, triathlon, and other endurance training, where you are already planning to take in carbohydrates along the way.
In our range of energy gels you’ll find several variants with caffeine, developed to be more fluid than classic gels, making them easy to consume even when your mouth is dry and the pace is high. One example is our caffeine gel for running and cycling, which combines fast-absorbing carbohydrates with a clearly stated amount of caffeine.
Typical benefits of caffeine gel:
- Energy and caffeine combined in one convenient solution
- Easy to open and consume on the bike or in your running shoes
- Easy to plan, as many plan intake about 30–60 minutes before the desired effect
Caffeine gels can especially make sense:
- In longer competitions like marathons, triathlons, and long cycling races, where you already have a fixed energy plan
- If you want to take in caffeine together with carbohydrate in the final part of the race
- If you prefer taking a gel rather than a capsule when intensity is high
On the other hand, the extra carbohydrate and texture mean that if you have a sensitive stomach, you should test gels thoroughly in training before planning them as a central part of your race strategy.
Caffeine capsules as pure caffeine without flavor
Caffeine capsules are a simple solution where you only get caffeine and avoid flavor, sugar, and gel consistency. Our caffeine capsules contain 100 mg of caffeine from natural guarana extract per capsule, so you can easily adjust the total amount to your goal and your tolerance.
Benefits of capsules:
- Precise dosing, so you can easily adjust in 100 mg steps
- No flavor and no sugar, which can be an advantage if you want to limit very sweet products before the start
- Flexible timing, as many take them about 30–60 minutes before the start
Capsules are often a good choice:
- If you already get carbohydrates via energy drink, regular gels, or solid food
- If you want to plan caffeine and carbohydrates separately
- If your stomach reacts to very sweet or concentrated gels
Always take capsules with a little fluid, both to make them easier to swallow and to reduce the risk of stomach discomfort.
You can get an overview of all our caffeine solutions, including capsules, gels, and effervescent tablets, in the collection of caffeine products for training and competition.
Choosing between gel or capsules in your everyday life
From a performance perspective, it is still total caffeine amount and your timing that matter most. But the format can be crucial for whether the strategy works for you on a long day at high intensity.
You can use this simple rule of thumb:
Choose primarily caffeine gel if:
- You want carbohydrates and caffeine at the same time
- You want support for focus and perceived energy in the final part of the race, where you were planning a gel anyway
- You want to keep it simple with a solution where energy and caffeine are combined
Choose primarily caffeine capsules if:
- You want to control caffeine precisely according to mg per kg of body weight
- You get carbohydrates from other sources such as Carbo Race, regular gels, or chews
- You want to avoid too much sweet or sticky intake before the start, or you have a sensitive stomach
For many endurance athletes, a practical solution is a combination, for example caffeine capsules before the start and caffeine gels in the final part of the race. The optimal approach depends on your discipline, duration, intensity, and how accustomed you are to caffeine in your training.
Timing and strategy in your caffeine plan
A simple way to structure your caffeine strategy is to divide the competition into three phases, so you have a plan for what you take and when.
Before the start from zero to 60 minutes
- Many use capsules to plan a base dose, for example 2–3 capsules of 100 mg depending on body weight and tolerance
- Optionally supplement with a regular energy gel without caffeine or a sports drink, so you start with a plan for carbohydrate intake
Midway through the competition
- For longer events over 90–120 minutes, it typically comes down to keeping carbohydrates and fluids steady with, for example, energy gels, chews, or energy drink
- If you took a larger caffeine dose before the start, many choose to wait before taking more caffeine and instead focus on carbohydrates and fluids
Final third close to the finish
- Many choose to take a caffeine gel for both carbohydrates and caffeine about 30–60 minutes before the expected finish
- Please note that products with caffeine are generally not recommended for children, pregnant or breastfeeding women, and always read the product’s recommendations and warnings
Whether you choose gel, capsules, or a combination, it’s a good idea to test your caffeine strategy in regular training sessions before using it in competition.
Combining gels, chews, electrolytes, and caffeine
Caffeine is only one part of your overall energy plan. For many, carbohydrates, fluids, and electrolytes also play an important role when planning longer sessions and competitions.
A simple strategy for a long run or a long bike ride could, for example, look like this:
- Before the start: Caffeine capsules and optionally a sports drink with carbohydrates
- During: Every 30–45 minutes a regular energy gel or chews without caffeine
- Ongoing fluids and electrolytes for fluid balance during training
- Late in the race: One caffeine gel as a planned supplement, as long as your total caffeine amount still stays within the level you know you tolerate
If you want more knowledge about how many gels you can use without overloading your stomach, you can read the guide can you take too many gels.
How to find your solution in practice
There isn’t one universal solution for whether caffeine gel or capsules are the best choice. But you can find your own preference by working systematically with your plan.
- Decide whether you want caffeine integrated into your energy intake or separated into its own products
- Consider your stomach and think about whether you react most to sweet products or to high capsule doses on an empty stomach
- Calculate total mg of caffeine per kg of body weight on your race days
- Test different combinations of caffeine products for training and competition in your regular training sessions
Once you have your dose, timing, and format under control, caffeine can be a planning tool in your energy plan that you can adjust from session to session, instead of leaving it to chance on race day.