Why cyclists are swapping gels for a clean-label fruit energy bar
TL;DR — A clean-label fruit energy bar delivers the same 2:1 glucose-fructose as a premium gel, without artificials, synthetic sweeteners, or preservatives. Eagle Nutrition builds on a fruit base: 80g carbs per 100g, 20g per bar. Combine with sports drink and 1 to 2 bars per hour. No gel. No brick. Fuel.
Kilometer 80. Three gels already consumed. Stomach protesting. Not because you're riding too fast. Because the contents – synthetic sweeteners, preservatives, concentrated sugar syrup – are taking their toll. Stomach discomfort during exercise is not a weakness. It's a nutritional signal.
Studies by the Jeukendrup group (de Oliveira et al., 2014) report that 30 to 90% of all endurance athletes experience GI complaints during exercise. In Ironman races, this rises to 93% for at least one symptom. 31% experience severe problems. For cyclists, the bent-over position adds to this – extra pressure on the gastrointestinal tract. This guide explains why more cyclists are swapping their gels for a clean-label fruit energy bar, and what the science says about that choice.
What exactly is a clean-label fruit energy bar?
A clean-label fruit energy bar is fruit-based sports nutrition, without synthetic additives, artificial sweeteners, colorings, or preservatives – developed for intake during exercise. Clean-label has a specific meaning in the food industry: the ingredient list is short, and every ingredient is recognizable as real food.
The Eagle Nutrition fruit performance bar delivers 80g of carbohydrates per 100g in a 2:1 glucose-fructose ratio. Vegan. Gluten-free. Lactose-free. 0% artificials. Per 25g bar, you get 20g carbs in that exact 2:1 ratio. The carbohydrates come from fruit – a carrier that the body recognizes.
That is the functional difference from a standard gel. Not the goal. Not the carb dosage. The carrier.
Why do gels cause so many cyclists stomach problems?
Stomach problems with gels arise due to high osmolarity, synthetic additives, and concentrated sugar syrup which draw water from the intestinal wall during exercise and slow gastric emptying – exacerbated in the bent-over cycling position.
Research by Peters et al. (1999) showed that cycling is associated with both upper and lower abdominal complaints – unlike running which mainly causes lower abdominal complaints. Pfeiffer et al. (2011) reported prevalences of 4% severe GI distress in cycling races up to 32% in Ironman events. De Oliveira, Burini & Jeukendrup (2014) list four primary risk factors for GI complaints during endurance sports in their Sports Medicine review:
- High osmolarity of concentrated carbohydrate solutions
- FODMAPs and synthetic sweeteners (ferment in the gut)
- Fat, protein, and fiber that slow gastric emptying
- Dehydration – impairs GI perfusion and absorption
Premium gels score high on the first two points. A fruit performance bar – if well formulated – scores low on all four. That is the reason behind the migration. Not a trend. Physiology.
What makes 2:1 glucose-fructose so important during cycling?
The 2:1 glucose-fructose ratio simultaneously activates two separate intestinal transporters (SGLT1 and GLUT5), increasing total carbohydrate uptake from 60g to 90g per hour without overloading the gut.
Glucose is absorbed via the SGLT1 transport protein. Maximum: approximately 60g per hour. Fructose uses a separate channel (GLUT5) and adds up to 30g per hour. Currell & Jeukendrup (2008) proved with an RCT that 2:1 glucose-fructose at 90g/hour improved time trial performance by 8% compared to glucose alone. Rowe et al. (2022) later confirmed this with a 7.6% gain on a 5km time trial, plus significantly fewer stomach complaints.
Eagle's fruit performance bar is built around that 2:1 ratio. No additives. Architecture. The ratio largely comes from the fruit itself – pear, mango, raspberry, cherry – where glucose and fructose naturally are close to 2:1. Eagle refines this ratio in the formulation so that each bar falls exactly within the optimal absorption range.
Does fruit as a carbohydrate source really work as well as a synthetic gel?
Yes. Multiple RCTs show that natural fruit carbohydrates (raisins) deliver identical performance to commercial gels or sports chews, with no difference in gastric discomfort.
Too et al. (2012), published in the Journal of the International Society of Sports Nutrition, compared raisins with sports chews in 11 trained runners during 80 minutes of exercise plus a 5km time trial. Result: identical performance. Identical blood glucose. No difference in GI complaints. Raisins even caused a lower insulin peak and better fat oxidation.
Rietschier et al. (2011) confirmed this in a similar study with sun-dried raisins versus Sports Jelly Beans™ during 2 hours of cycling + 10km time trial. Identical performance. Athletes reported significantly more taste preference for the natural source (50.7 vs 44.3 on a hedonic scale).
Fruit as a carrier for carbohydrates during exercise is therefore not a new or experimental choice. It is a scientifically validated alternative to synthetic formulas. Eagle elevates that principle to performance level: the 2:1 ratio precisely calibrated, the format optimized for 25g per bar, and the flavor architecture at a chef level.
Fruit performance bar versus standard energy gel: the comparison
| Feature | Standard energy gel | Fruit energy bar Eagle |
|---|---|---|
| Carbs per 100g | ~70–75g | 80g |
| 2:1 glucose/fructose | Variable, not always | Yes, standard |
| Artificials | Often present | 0% |
| Base | Synthetic carriers | Fruit |
| Vegan / Gluten-free | Variable | Both yes |
| Format | Liquid sachet | 25g solid bar |
| Temperature stable | No (syrupy when cold) | 5°C to 35°C |
Is texture a performance factor or just taste?
Texture is a performance factor. A product you consistently consume delivers more than a product with a better formula that you abandon halfway because you're tired of it.
Gels require a technique: tear open the sachet, squeeze out the contents, rinse with water. In a peloton or descent, that's not neutral. Gels become syrupy when cold. They become watery when warm. Their liquid consistency doesn't tolerate delays – once open, you have to drink it.
A 25g fruit performance bar has a different logic. Solid texture, two or three bites, no mandatory timing, no liquid. The bar remains functional between 5°C and 35°C. Chewing slightly distributes carbohydrate intake over time – which makes gastric load more even on longer rides.
The Jeukendrup group (de Oliveira et al., 2014) points to "flavor fatigue" as an underappreciated cause of reduced intake in hour 3 and later: athletes simply stop fueling because the taste becomes unbearable. Variety in texture and taste increases consistent adherence to the fueling schedule. Eagle bars come in four culinary flavor profiles – bright fruit, not sickly sweet.
How do you integrate a fruit performance bar into your existing fueling strategy?
Carbohydrates during exercise never come from a single source. Always from a combination: sports drink as the primary source, bars as a solid component, possibly a gel for the finale.
Standard sports drink contains 6 to 8% carbohydrates – an isotonic concentration that is optimally absorbed. That means:
- 500 ml sports drink (6–8%) = 30 to 40g carbs
- 750 ml sports drink (6–8%) = 45 to 60g carbs
- 800 ml 2:1 high-carb mix = up to 60g carbs per bottle
One Eagle fruit performance bar provides 20g carbs in the same 2:1 ratio. Together, you build your hourly schedule.
Practical protocol for rides longer than 90 minutes:
- Hour 1: Glycogen from your own reserves. Start fueling from minute 15 to 20 with drink and a first bar.
- Steady state (60g/hour): 1 bottle of 500–750 ml sports drink + 1 bar per hour.
- High intensity (75–90g/hour): 1 bottle of 750–800 ml 2:1 mix + 1 to 2 bars per hour.
- Finale or sprint: Optionally a gel for an immediate peak. Bars remain the stable base layer.
- Hydration: Drink before you get thirsty. Dehydration impairs absorption.
Max 1 to 2 bars per hour. More is not physiologically realistic – your stomach cannot digest four bars per hour at speed. Bars are a supplement to your drink, not a replacement.
What does science say about clean-label sports nutrition and gastric tolerance?
GI complaints in endurance athletes correlate strongly with FODMAPs, synthetic sweeteners, and concentrated osmolar solutions – precisely the factors on which gels score high and where fruit-based products remain low.
A product without artificials, fruit-based, with a known and stable ingredient matrix lowers the potential irritant load. Too et al. (2012) noted that fruit-CHO delivered identical performance to commercial products – without more GI complaints. For athletes with a history of stomach issues, that's a direct argument to switch the source.
This is the mechanism behind the choice of more and more cyclists for clean-label sports nutrition as a functional alternative to gel. Not a placebo effect. A reduction of unnecessary triggers in a system already under pressure during exercise.
Eagle Nutrition positions the fruit performance bar not as a remedy or medical product. It is fuel. Functional, clean, during exercise. The choice for a clean-label fruit performance bar is a nutritional choice – based on what your body needs and what you're better off without.
No gel. No brick. Fuel during exercise. Fuel your flight.
Scientific basis
Peters et al., 1999 — 30-50% of endurance athletes (runners, cyclists, triathletes) experience GI symptoms during exercise. Cycling is specifically associated with both upper and lower abdominal complaints. American Journal of Gastroenterology. doi:10.1111/j.1572-0241.1999.01147.x
Currell & Jeukendrup, 2008 — RCT in trained cyclists. Glucose+fructose in 2:1 ratio improved time trial performance by 8% compared to glucose alone, plus lower perceived exertion and fewer stomach complaints. Medicine & Science in Sports & Exercise. doi:10.1249/mss.0b013e31815adf19
Too et al., 2012 — RCT in trained runners. Raisins (natural fruit-CHO) delivered identical performance and blood glucose as commercial sports chews, with no difference in GI complaints. Fruit-CHO resulted in lower insulin peak and better fat oxidation. Journal of the International Society of Sports Nutrition. doi:10.1186/1550-2783-9-27
de Oliveira, Burini & Jeukendrup, 2014 — Authoritative review. GI complaints in 30-90% of endurance athletes. Risk factors: high osmolarity, FODMAPs, fat/protein, dehydration. 2:1 ratio and clean-label CHO reduce symptoms. Sports Medicine. doi:10.1007/s40279-014-0153-2
Sources
- Peters HPF, Bos M, Seebregts L, et al. (1999) — Gastrointestinal symptoms in long-distance runners, cyclists, and triathletes: prevalence, medication, and etiology. American Journal of Gastroenterology 94(6):1570-1581. doi:10.1111/j.1572-0241.1999.01147.x
- Currell K, Jeukendrup AE (2008) — Superior endurance performance with ingestion of multiple transportable carbohydrates. Medicine & Science in Sports & Exercise 40(2):275-281. doi:10.1249/mss.0b013e31815adf19
- Too BW, Cicai S, Hockett KR, Applegate E, Davis BA, Casazza GA (2012) — Natural versus commercial carbohydrate supplementation and endurance running performance. Journal of the International Society of Sports Nutrition 9:27. doi:10.1186/1550-2783-9-27
- de Oliveira EP, Burini RC, Jeukendrup AE (2014) — Gastrointestinal complaints during exercise: prevalence, etiology, and nutritional recommendations. Sports Medicine 44(Suppl 1):S79-S85. doi:10.1007/s40279-014-0153-2
Frequently Asked Questions
Why do cyclists choose a fruit performance bar instead of a gel?
Gels provide carbs, but for 30 to 90% of endurance athletes, they cause GI complaints during exercise (de Oliveira et al., 2014). The Eagle fruit performance bar delivers the same 2:1 glucose-fructose ratio as a top gel, in a solid form without artificials. Chewing slightly distributes intake over time – which makes gastric load more even on longer rides.
Does a fruit performance bar have the same effect as a gel during exercise?
Yes. Too et al. (2012) showed that raisins – a natural fruit-carbohydrate source – deliver identical performance to commercial sports chews, with no difference in GI complaints. The Eagle bar contains 80g carbs per 100g in a 2:1 glucose-fructose ratio. This is precisely the ratio that maximizes both intestinal transporters (SGLT1 and GLUT5).
What makes a fruit performance bar clean-label compared to standard gels?
Clean-label means: no artificials, no synthetic colorings, no added flavorings, no preservatives. The Eagle bar is vegan, gluten-free, and lactose-free. The ingredient list is short and every ingredient is recognizable as real food. This is not a marketing term but a direct description of what is not in it.
How do I combine a fruit performance bar with my sports drink?
Standard sports drink (6-8% carbs) provides 30 to 60g carbs per 500-800 ml bottle. One Eagle bar adds 20g carbs. For 60g/hour: 1 bottle + 1 bar. For 90g/hour: 1 high-carb bottle + 1 to 2 bars. Max 1 to 2 bars per hour — more is not physiologically realistic during exercise.
What is the difference between a fruit performance bar and a regular muesli bar?
A muesli bar is not formulated for use during exercise. Its carbohydrate density is lower, the fiber and fat content slow down absorption, and the glucose-fructose ratio is rarely optimized. The Eagle fruit performance bar is functionally designed: 80g carbs per 100g, 2:1 ratio, direct fuel. No compromise on timing or tolerance.
Can I combine fruit bars and gels within the same ride?
Yes. The most common strategy among experienced endurance athletes is: sports drink as the main source, fruit performance bar as a solid base layer for the first few hours, gel in the final stages where rapid absorption offers an advantage. All sources contribute to the 60 to 90g carbs per hour that you aim to absorb.
Does clean-label fuel also apply to runners and triathletes?
Yes. Gut physiology is sport-agnostic. Too et al. (2012) proved the principle in runners, Currell & Jeukendrup (2008) in cyclists. Runners even more frequently experience GI complaints due to the impact of running. A lower irritant load from clean-label fuel is extra relevant there. Eagle bars are developed for cycling, MTB, gravel, running, and triathlon.
Conclusion: when to swap gels for a clean-label bar?
If you experience stomach complaints after hour two. If flavor fatigue reduces your intake. If you principally want to eat clean during performance. Or if you simply want a bar that functions alongside your sports drink. Eagle Nutrition bars provide the same 2:1 glucose-fructose profile as a premium gel, fruit-based, without artificials. Vegan, gluten-free, lactose-free. 20g carbs per bar. One to two per hour, as a solid component alongside your bottle.
Fuel correctly. Fuel your flight.
