Lab Tests: Independent Nutrition and Safety Testing

Short answer: yes, Lecka's labels are accurate. Between December 2025 and early 2026 we sent every Energy Gel and Ultra Gel to Eurofins, one of the world's largest independent food-testing groups. Every product tested within about 3% of its label for carbohydrate, calories and sodium. No pathogens were detected, and heavy metals were not detected or were at trace levels below 0.03 mg/kg.

Results below are converted from the lab's per-100 g figures to one pouch using each product's net weight. Full reports can be downloaded at the bottom of this page. Last updated: November 2026.

Label vs. lab: carbs, calories and sodium per pouch

Product (net weight)	Carbs: label / lab	Calories: label / lab	Sodium: label / lab
Energy Gel Passion Fruit (40 g)	27 g / 26.8 g	110 / 109	90 mg / 88 mg
Energy Gel Banana (44 g)	25 g / 24.6 g	100 / 102	98 mg / 98 mg
Energy Gel Kumquat Honey (40 g)	26 g / 26.2 g	110 / 107	96 mg / 96 mg
Energy Gel Lime Ginger (40 g)	27 g / 26.7 g	110 / 109	103 mg / 103 mg
Energy Gel Coffee Cacao (43 g)	22 g / 21.5 g	100 / 104	120 mg / 120 mg
Ultra Gel Passion Fruit Mango (102 g)	65 g / 64.7 g	260 / 263	410 mg / 405 mg
Ultra Gel Banana Peanut Butter (108 g)	60 g / 59.5 g	315 / 312	450 mg / 448 mg

Coffee Cacao was also tested for caffeine: 82 mg per pouch against 80 mg on the label.

Why we publish this

A 2024 study in the International Journal of Sport Nutrition and Exercise Metabolism found that many energy gels contained fewer carbs and calories than their labels claimed. If you plan your race fuelling to the gram, that matters. So we send sealed, finished products to an independent lab and publish the full results, so you can check our numbers yourself.

What's in the carbohydrate

Eurofins also measured the sugar profile of each product. Lecka gels get their carbohydrate from a mix of sucrose (from cane sugar and fruit), glucose and maltose (from tapioca syrup and honey) and fructose (from fruit and honey). Combining glucose and fructose sources lets the gut absorb more carbohydrate per hour than glucose alone. Why the glucose-fructose ratio matters.

Product	Total sugars (per 100 g)	Main sugars	Estimated glucose : fructose
Passion Fruit	47.0 g	Sucrose, glucose, fructose, maltose	about 2.4 : 1
Banana	42.7 g	Mostly sucrose	about 1.9 : 1
Kumquat Honey	42.5 g	Fructose, glucose, maltose	about 2.8 : 1
Lime Ginger	44.4 g	Fructose, glucose, maltose	about 2.6 : 1
Coffee Cacao	44.1 g	Mostly sucrose	about 1.7 : 1
Ultra Gel Passion Fruit Mango	45.2 g	Sucrose, maltose, glucose, fructose	about 2.2 : 1
Ultra Gel Banana Peanut Butter	42.0 g	Mostly sucrose	about 1.7 : 1

How we estimate the ratio: sucrose counts as half glucose, half fructose; maltose and carbohydrate not measured as sugar (from tapioca syrup and fruit starch) count as glucose; dietary fibre is excluded. It's an estimate from the lab data, not a separate lab measurement.

Safety testing

Microbiology: no E. coli, coliforms, Staphylococcus aureus, Clostridium perfringens, Pseudomonas, faecal streptococci, yeasts or moulds detected in any gel or Ultra Gel.
Heavy metals: arsenic, mercury, lead and cadmium were not detected, or found only at trace levels below 0.03 mg/kg.
Pesticides: key fruits are tested for pesticide residues (reports below).

Download the full reports

Energy Gels and Ultra Gels (Eurofins, 2025–26)

Energy Bars (2024)

Pesticide tests

Frequently asked questions

Are Lecka's nutrition labels accurate?

Yes. Independent Eurofins tests in 2025–26 found every Lecka Energy Gel and Ultra Gel within about 3% of its label for carbohydrate, calories and sodium.

Who tests Lecka products?

Eurofins Sac Ky Hai Dang in Vietnam, part of the Eurofins group, tested the current Energy Gels and Ultra Gels. Older bar and pesticide reports are linked above.