Energy Bars in Cycling

Introduction

Energy bars have been an indispensable part of competition nutrition in cycling for decades. They provide a compact, practical, and quickly available energy source for long training sessions and intense races. Unlike liquid sports nutrition, bars deliver not only fast carbohydrates but also a certain amount of protein, fats, and fiber, making them a versatile nutrition option.

Modern bars are specifically tailored to the needs of endurance athletes and differ fundamentally from conventional sweets or granola bars. The science behind their composition considers digestion speed, stomach tolerance, energy density, and practical aspects such as consistency at different temperatures.

Types of Bars for Cyclists

Energy Bars (High-Carb)

Energy bars with high carbohydrate content (60-80% of calories) are the classic choice for longer rides and races. They typically contain 200-300 calories per bar and provide quickly available energy through a combination of simple and complex carbohydrates.

Typical Composition:

• 30-45g carbohydrates
• 2-5g protein
• 3-8g fat
• 200-300 kcal

These bars are ideal during intense exertion when the body primarily uses carbohydrates for energy production. Many also contain additional electrolytes such as sodium and potassium to support hydration.

Protein Bars

Protein bars with a protein content of 15-30g per bar are less suitable for use during races, but rather serve primarily for recovery after intense sessions. They support muscle repair and building.

Typical Composition:

• 20-40g carbohydrates
• 15-30g protein
• 5-15g fat
• 250-400 kcal

The higher protein and fat content slows digestion, which is why these bars should not be consumed during high-intensity exertion.

Granola Bars and Natural Products

Granola bars based on oats, nuts, dried fruits, and honey offer a more natural alternative to industrially manufactured energy bars. They contain more fiber and complex carbohydrates, leading to slower but more constant energy release.

These are particularly suitable for:

• Long, moderate base training sessions
• Early morning rides as breakfast replacement
• Multi-day tours with moderate pace

Homemade Bars

Many professional teams rely on homemade bars, often known as "Rice Cakes" - a mixture of cooked rice, dried fruits, nuts, and honey. These offer maximum control over ingredients and are often better tolerated than commercial products.

Nutrient Composition in Detail

Glycemic Index

The glycemic index (GI) determines how quickly carbohydrates are absorbed into the bloodstream:

• High GI (70+): Fast energy, ideal during intense exertion
• Medium GI (55-70): Balanced energy release for moderate sessions
• Low GI (<55): Long-lasting energy, good before long rides

Modern competition bars often combine various carbohydrate sources with different GI to provide both fast and long-lasting energy.

Optimal Use in Training and Competition

Before the Race

60-90 minutes before start:

• 1 bar with moderate GI
• Easily digestible, low fiber content
• Combined with sufficient fluid
• Avoid new, untested products

The goal is glycogen replenishment without burdening the gastrointestinal tract.

During the Race

Rules of thumb for intake:

• First bar after 60-90 minutes
• Then another bar every 60-75 minutes
• Target intake: 60-90g carbohydrates per hour
• Always in combination with fluid

Important Notes:

• Don't test on empty stomach
• Gradually increase amount in training
• During intense exertion, possibly switch to gels

After Training

30-60 minutes after exertion ends:

• Protein-rich bar (15-20g protein)
• Combined with carbohydrates in a 3:1 to 4:1 ratio
• Supports optimal recovery
• Alternative to protein shakes

Tolerance and Stomach Problems

Common Problems

Nausea and Fullness:

• Cause: Too high fat or fiber content
• Solution: Switch to pure carbohydrate bars during intense phases

Diarrhea:

• Cause: Too high FODMAPs, sugar alcohols, lactose
• Solution: Choose bars with simple ingredients, test individual tolerance

Cramps:

• Cause: Too little fluid with bar
• Solution: Drink at least 200-300ml water per bar

Tolerance Checklist

Well-tolerated Ingredients:

• Maltodextrin
• Dextrose
• White rice
• Banana
• Maple syrup

Problematic Ingredients (individual):

• Sugar alcohols (sorbitol, xylitol)
• High fructose content
• Dairy products (lactose)
• Nuts (during exertion)
• Artificial sweeteners

Timing and Carbohydrate Intake Strategy

Combination Strategy

Optimal combination of different products:

• Hour 1: Drink only (30g carbohydrates)
• Hour 2: 1/2 bar + drink (60g total)
• Hour 3: 1 gel + drink (60g total)
• Hour 4: 1 bar + drink (75g total)
• Hour 5+: Rotation of bar, gel, savory snacks

This rotation prevents taste fatigue and optimally utilizes different digestive pathways.

Commercial Products vs. Homemade

Advantages of Commercial Bars

• Exact nutrient information
• Consistent quality
• Long shelf life
• Optimized tolerance
• Various flavors
• Practical packaging

Advantages of Homemade Bars

• Full control over ingredients
• Cost-effective
• Natural ingredients
• Individual adaptation
• No additives
• Often better tolerance

Cost-Benefit Analysis

Popular Brands and Products 2025

Premium Segment

Scientifically optimized, highest tolerance:

• Maurten Solid (neutral hydrogel technology)
• SiS GO Energy Bar (well tolerated, moderate sweetness)
• Näak Ultra Energy Bar (plant-based, sustainable)
• Clif Bar (classic, versatile)

Performance Segment

Focus on maximum energy density:

• PowerBar Energize (proven, various flavors)
• High5 Energy Bar (affordable, solid quality)
• Sponsor Energy Bar (Italian quality)
• Torq Energy Bar (British classic)

Natural Segment

Natural ingredients, organic quality:

• Kate's Real Food Bars (real food)
• MuleBar (organic certified, delicious)
• PurePower Bar (Scandinavian, minimalist)
• Squirrel's Nut Butter (innovative textures)

Recipe: Homemade Rice Cakes

Ingredients (makes 12 portions):

• 400g cooked sushi rice (sticks better)
• 100g dried apricots, finely chopped
• 80g almonds, chopped
• 60g honey or maple syrup
• 40g coconut oil
• 1 tsp vanilla extract
• 1/2 tsp sea salt
• Optional: 30g protein powder

Preparation:

1. Cook rice according to package instructions, let cool slightly
2. Heat coconut oil and honey in small pan
3. Mix all ingredients in large bowl
4. Press mixture firmly into greased pan (20x20cm)
5. Refrigerate for 2-4 hours
6. Cut into 12 portions
7. Wrap individually in aluminum foil

Nutritional values per portion:

• Calories: ~180
• Carbohydrates: 32g
• Protein: 4g
• Fat: 4g

Shelf life: 5-7 days in refrigerator

Storage and Shelf Life

Optimal Storage Conditions

Commercial bars:

• Store cool and dry (15-20°C)
• Avoid direct sunlight
• Original sealed: 12-24 months shelf life
• Opened: consume within 2-3 weeks

Homemade bars:

• Refrigerator (4-7°C): 5-7 days
• Freezer (-18°C): up to 3 months
• Use airtight containers
• Package individually for better shelf life

Consistency at Different Temperatures

Important for competitions:

• < 10°C: Many bars become hard and difficult to chew
• 20-25°C: Ideal consistency
• > 30°C: Many bars become soft and sticky

Solution: For hot races, transport bars in insulated bag with cooling pack or switch to gels.

Scientific Findings

Current Research 2024-2025

Carbohydrate Intake Upper Limit:

Latest studies show that trained athletes can absorb up to 120g carbohydrates per hour when glucose and fructose are combined in a 2:1 ratio. This exceeds the previous recommendation of 90g/h.

Protein During Exertion:

Small amounts of protein (5-10g per hour) during long rides (>4h) can reduce muscle breakdown without burdening digestion.

Fat Adaptation:

In ultra-long events (>6h), moderate amounts of fat in bars can improve metabolic flexibility and spare glycogen.

Bars for Special Requirements

Gluten-Free

• Clif Bar White Chocolate Macadamia
• Näak Ultra Energy Bar
• MuleBar Natural Energy
• Homemade rice bars

Vegan

• Näak Ultra Energy (all flavors)
• Clif Bar (most flavors)
• Kate's Real Food
• Squirrel's Nut Butter
• PowerBar Plant Protein

Low-FODMAP

• Maurten Solid
• SiS GO Energy Bar
• Homemade with rice + banana
• Torq Energy Bar (selected flavors)

Allergen-Friendly

Nut-free:

• SiS GO Energy Bar
• PowerBar Energize Original
• High5 Energy Bar

Lactose-free:

• Most energy bars (check protein bars!)
• All plant-based bars

Common Mistakes and Solutions

Mistake 1: Not Drinking Enough

❌ Problem: Bars without sufficient fluid lead to digestive problems

✅ Solution: Drink at least 300ml water per bar within 15 minutes

Mistake 2: Untested Products in Competition

❌ Problem: Gastrointestinal problems from unknown bars

✅ Solution: Test new bars at least 3-4 times in training

Mistake 3: Too Late Intake

❌ Problem: Waiting until hunger/weakness sets in

✅ Solution: Eat preventively before energy reserves are depleted

Mistake 4: Too Large Portions

❌ Problem: Complete bar at once overwhelms digestion

✅ Solution: Divide bar into 3-4 pieces, eat spread over 20-30 minutes

Mistake 5: Wrong Bar Type

❌ Problem: Protein bars during intense exertion

✅ Solution: High intensity = pure carbohydrate bars; Recovery = protein bars

Checklist: The Right Bar for You

For intense races (>4 watts/kg):

• At least 70% carbohydrates
• Low fiber content (<3g)
• Low fat content (<5g)
• Glucose + fructose combination
• Simple, tested ingredients

For long base training sessions:

• 60-70% carbohydrates
• Moderate fiber (3-5g)
• 5-10g healthy fats
• Natural ingredients
• Good taste (for motivation)

For recovery:

• 15-25g protein
• Carbohydrate:protein ratio 3:1 or 4:1
• Contains BCAAs
• Within 60 min. after exertion
• Combinable with recovery drink

Practical Tips for Competitions

Transport and Packaging

Jersey pocket:

• Pre-cut bars into 3-4 pieces
• Wrap individually in plastic wrap
• Label with "Hour 2", "Hour 4" etc.
• Heavy bars at bottom, light ones on top

Road bike frame bag:

• Whole bars for later race phases
• Protect from moisture
• Combine with cooling pack in heat

Team car strategy:

• Get new bars at feed zone
• In various flavors
• Always carry 1-2 backup bars

Grand Tour Strategy

Example Tour de France stage (180km, 5h):

• Hour 1: Drink only
• Hour 2: 1/2 bar (sweet) + gel
• Hour 3: 1 bar (savory) + drink
• Hour 4: 1 gel + 1/2 bar (sweet)
• Hour 5: 1 bar + final gels for approach to finish

Flavor rotation important: Variety prevents taste fatigue

Environment and Sustainability

Packaging Problem

Commercial bars generate significant packaging waste:

• Average 15g packaging per 60g bar
• Mostly not recyclable (multilayer films)
• Per season: 50-100 bars = 750-1500g waste per rider

Sustainable Alternatives

Best options:

• Homemade bars in reusable containers
• Maurten (recyclable packaging)
• Näak (compostable packaging)
• Bulk purchase and portioning in own foil
• Reusable stainless steel boxes for transport

Professional teams:

Many WorldTour teams rely on homemade "feed" in reusable muslin bags - zero waste at feed zones.

Future Trends 2025+

Personalized Bars

AI-supported analysis of training load, sweat analysis, and individual tolerance leads to:

• Tailored carbohydrate mixtures
• Optimized electrolyte content
• Personalized flavor profile
• 3D-printed bars (future)

New Ingredients

Currently in development:

• Algae-based proteins (sustainable)
• Fermented carbohydrates (better tolerance)
• Adaptogenic additives (stress reduction)
• Probiotic bars (gut health)

Smart Packaging

Already available:

• QR codes with timing recommendations
• Temperature indicators
• Integrated electrolyte checks
• App integration for tracking