You probably heard before but Sour Patch Watermelon candies are surprisingly popular in the endurance and hybrid training world including HYROX, CrossFit, and marathon communities — for a few science-backed and practical reasons:

Why Athletes Love Sour Patch Watermelon Candy

Fast-Acting Carbohydrates

They're made primarily of sugar (glucose + sucrose), which provides a quick energy boost during high-intensity exercise.

Helps replenish glycogen during long efforts or intense races

Ideal for glycolytic events like HYROX

Gut Tolerability 

Unlike dense gels or bars, many athletes find simple candy easier to digest, especially during:

Hot environments (indoor HYROX races)

High-RPE conditions (such as, wall balls, sleds, runs)

Mental Boost /Dopamine Hit

The sweet-sour combo gives a fast dopaminergic and sensory lift:

Sweet = comfort

Sour = alertness / brain stimulation It's like a legal mini-mood enhancer when fatigue kicks in!

Portability & Practicality

No mess, no wrapper goo like gels

Fits in race belt or shorts

Doesn't melt easily compared to chocolate or nut bars

Cost-Effective Fuel

At ~$1–2 per bag, it's:

Cheaper than sports gels or chews

Widely available, you can find pretty much anywhere

Trusted by Elite Athletes

Some elite hybrid athletes and ultra-endurance runners have openly say they consume during the event instead of using sports gel.

However you need to be aware:

No electrolytes – Pair with an electrolyte drink if you're sweating a lot

No protein/fat/fiber – Not a full meal or recovery food

May spike blood sugar too quickly for some if used alone during low-intensity training

HYROX Tip:

Use during the run stations or transitions when you need a quick carb hit and your stomach is too tight for a full gel or bar.

Although you also need to know that even it says "fruits" on the package - there's no fruit juice or actual watermelon in Sour Patch Watermelon—just artificial flavors!

Sour Patch Watermelon – Ingredients List

(Ingredients may vary slightly by brand or country, but this is the standard U.S. version)

SUGAR, INVERT SUGAR, CORN SYRUP, MODIFIED CORN STARCH, CONTAINS LESS THAN 2% OF CITRIC ACID, TARTARIC ACID, NATURAL AND ARTIFICIAL FLAVOR, TITANIUM DIOXIDE, RED 40, YELLOW 5, BLUE 1.

Nutritional Snapshot (per ~8 pieces / 30g serving):

~110–120 calories

~26–28g carbs (mostly sugar)

0g fat / 0g protein

0 fiber / 0 sodium

Ingredient Breakdown:

SOUR CANDY (e.g., Sour Patch Watermelon)

Sugar

What it is: Sucrose (glucose + fructose) from cane or beet sugar.

Purpose: Provides sweetness and the main source of carbohydrate.

In Sports: Fast-absorbing fuel for quick energy; used in many sports gels and drinks.

Invert Sugar

What it is: A mix of glucose and fructose created by splitting sucrose using acid or enzymes.

Purpose: Makes candy softer, retains moisture, enhances sweetness.

In Sports: Dual carb transport system (glucose + fructose) = faster energy uptake.

Corn Syrup

What it is: A syrup made from corn starch, mostly glucose.

Purpose: Improves texture, prevents crystallization.

In Sports: Quickly digestible carb; same type found in some gels (not high fructose corn syrup unless specified).

Modified Corn Starch

What it is: Corn starch that has been chemically or enzymatically altered.

Purpose: Used as a thickener or gelling agent to create chewy texture.

Health Note: Generally recognized as safe (GRAS), but has no nutritional value.

Citric Acid

What it is: A naturally occurring acid found in citrus fruits.

Purpose: Adds sour taste and acts as a preservative.

In Sports Nutrition: Common in electrolyte powders and sports drinks.

Tartaric Acid

What it is: A naturally occurring acid found in grapes and bananas.

Purpose: Intensifies sourness, enhances flavor balance.

Health Note: Safe in small amounts; used in baking and winemaking too.

Natural and Artificial Flavor

What it is:

Natural flavor = derived from plants/animals.

Artificial flavor = synthetically made to mimic natural taste.

Purpose: Creates the "watermelon" or fruity candy flavor.

Health Note: No nutritional benefit; sensitive individuals may react to certain compounds.

Titanium Dioxide

What it is: A white pigment and opacifier.

Purpose: Used to make candy coatings brighter and more opaque.

Health Concern: Recently banned in some countries (e.g., EU) over safety concerns related to nanoparticle absorption; still allowed in U.S. under GRAS status.

Red 40

What it is: Synthetic dye derived from petroleum.

Purpose: Provides bright red/pink color.

Health Concern: Linked to hyperactivity in sensitive children; controversial but still legal in many countries.

Yellow 5 (Tartrazine)

What it is: Synthetic dye.

Purpose: Adds brightness and enhances the overall color mix.

Health Concern: Can cause allergic reactions in sensitive individuals; banned in some countries or carries warning labels.

Blue 1

What it is: Another synthetic food dye.

Purpose: Complements red and yellow for color mixing.

Health Concern: Generally considered safe, but like others, has raised mild concerns regarding hyperactivity and allergic responses in some.

Notes: 

High in fast carbs (good for quick race fuel).

They contain no fat, protein, fiber, or micronutrients.

Artificial colors and acids 

Still legal in the U.S. as a GRAS (Generally Recognized as Safe) additive.

Used for: Opacity and brightness in candies, chewing gum, and supplements.

Natural alternatives like raisins, dates, or rice-based chews are cleaner options for long-term fueling.

Synthetic Food Dyes (Red 40, Yellow 5, Blue 1)

These are not banned outright in the EU, but they are heavily regulated and come with warning labels. Some versions are not approved under their U.S. names:

In the EU, food products containing these dyes must include warning statements and are subject to stricter concentration limits than in the US.

Ingredients Allowed in the EU -With Conditions

Sugar, Invert Sugar, Corn Syrup (Glucose Syrup): Allowed

Citric Acid and Tartaric Acid: Approved for use

Modified Corn Starch: Allowed with certain modifications

Natural and Artificial Flavors: Allowed, but “artificial flavor” must meet stricter origin and labeling standards

For EU Athletes

Titanium Dioxide = Not allowed in any food in the EU.

Red 40, Yellow 5, and Blue 1 = Allowed but discouraged, especially in children's food, and must include warning labels.

Many popular US candies and supplements are reformulated for the EU to comply with these rules (i.e., no TiO2 and dye alternatives).

US vs EU Ingredient Approval in Sour Candy

While many of the ingredients in popular sour candies like Sour Patch are approved for use in both the United States and the European Union, there are key differences in how they're regulated. The EU has taken a more precautionary approach—banning titanium dioxide due to safety concerns and requiring warning labels on synthetic dyes like Red 40, Yellow 5, and Blue 1 due to their potential impact on attention and hyperactivity in children. 

These differences shows the importance of reading labels, especially for athletes who may be consuming candies and gels for performance. Choosing products that meet international safety standards can help minimize unnecessary additives without sacrificing fueling efficiency.

Here's some Fast Energy, Easy Digestion fueling tips for pre-race: 

Salted Pretzels 

Use: Before event or mid-taper week

High sodium content (~450mg per 30g)

Moderate carbs (25–30g per serving)

Great for hydration + carb combo

Tip: Combine with water or sports drink pre-race

Medjool Dates with Salt or Nut Butter

Use: 60–90 minutes pre-race

~18g carbs per date (mostly glucose & fructose)

Optional: add a pinch of sea salt or smear of almond butter

Slow + fast carbs in one

Tip: Great for taper week + gut-training!

White Bread + Honey

Use: 3–4 hours before race (light meal)

~35g carbs per sandwich

Fast-digesting, low fiber

Classic pre-race staple for marathoners & triathletes

Tip: Add banana slices for potassium and taste

Applesauce Pouches

Use: ~30 min before race or if light GI upset

Easy on the gut

Natural sugar, mild fiber

Kid snack = athlete fuel

Tip: Freeze for 30 mins before race if you want a cool-down effect

Pro HYROX Fueling Hack:

Try "combo carb dosing" pre-race:

Half bagel + honey (maltose/glucose)

Banana (fructose)

Electrolyte drink (sodium)

This combo helps maximize glycogen without upsetting the gut.

Bonus tips

Option 1: Dry Raisins

My favorite Dry Raisins are an excellent natural alternative for athletes, especially for events like HYROX where you want a fast glucose + fructose combo to support repeated high-intensity efforts.

Natural Carb Source

Glucose + Fructose combo → rapid + sustained energy

~30g carbs per 40g serving (about ¼ cup)

Similar to the sugar profile in many commercial gels!

Gentle on the Gut

No artificial ingredients, dyes, or acids like sour candy

Often better tolerated for athletes who get GI upset from gels or chews

Portable and Easy to Portion

Pre-pack in snack-size bags (~25–30g carbs)

Doesn't melt or spoil

Can be chewed on the move (during run stations or transitions)

Contains Trace amounts of Electrolytes 

Small amounts of potassium and magnesium

Can support basic fluid balance during exercise

Research-Backed

A 2012 study published in Journal of the International Society of Sports Nutrition compared raisins to commercial sport chews and found:

“Raisins are a cost-effective, natural source of carbohydrate that is just as effective as sports chews for endurance performance.”

Reference: Rietschier, C., et al. (2012). JISSN

https://pubmed.ncbi.nlm.nih.gov/22704463/

How to Use Raisins for HYROX:

Option 2: Dates

Dates are real food fueling for endurance and hybrid athletes. They are soft, easy to carry, and naturally rich in fast-digesting carbs. Dates are more than just a sweet treat — they're a science-backed carb source that fits perfectly into HYROX-style race strategies.

Why?

Dates are rich in two key carbohydrates:

Glucose (aka dextrose): absorbed rapidly into the bloodstream

Fructose: absorbed via a separate intestinal transporter, allowing dual-carbohydrate fueling

This 2:1 ratio of glucose to fructose is the same optimized carb ratio found in many top-tier sports products like Maurten, Tailwind, and SIS Beta Fuel — making dates a natural match for hybrid endurance performance.

Nutrition -Per 1 Medjool Date:

~18g total carbohydrates

~2g fiber

~0g fat

~0.5g protein

Small amounts of potassium, magnesium, and iron

Benefits for HYROX Athletes:

When to Use Dates for HYROX

Pre-Race (~60–90 mins before):

2–3 dates + small amount of protein or nut butter

Helps build liver glycogen, especially after an overnight fast

During Long Training Workouts:

1–2 dates every 30–40 mins

Pair with water or an electrolyte drink for better absorption

Post-Race:

Combine with whey protein for rapid glycogen restoration + muscle repair

Salted Dates for Smart Sodium Loading

Lightly sprinkling sea salt on dates pre-race adds electrolytes that support fluid balance — especially valuable in hot indoor environments like HYROX arenas.

Quick Fuel Ideas:

"HYROX Bomb": 2 dates + 1 tsp almond butter + sea salt

Recovery Bites: Chopped dates + whey + oats rolled into balls

Pre-Race Snack: 3 dates + 1 hard-boiled egg + ½ banana

Important to know:

Like all race-day fuel, test your date strategy in training before competition day. While dates are gut-friendly for many, their fiber content may cause issues if eaten too close to race start or in large quantities.

References: 

Sweet Candy. https://www.sweetcandy.com/collections/fruit-sours/products/watermelon-fruit-sours

National Library of Medicine. "Natural versus commercial carbohydrate supplementation and endurance running performance". https://pubmed.ncbi.nlm.nih.gov/22704463/

National Library of Medicine. "A Step Towards Personalized Sports Nutrition: Carbohydrate Intake During Exercise". https://pmc.ncbi.nlm.nih.gov/articles/PMC4008807/

ResearchGate. "Nutritional Value of Date Fruits and Potential Use in Nutritional Bars for Athletes". https://www.researchgate.net/publication/342173579_Nutritional_Value_of_Date_Fruits_and_Potential_Use_in_Nutritional_Bars_for_Athletes