Lidl has introduced its first-ever high-fibre Freeway Sparkling Cans, a new drink designed to benefit IBS sufferers while supporting heart health. The drink is now available in all UK stores at 69p per can, in two flavours: passionfruit and mint, and ginger and lemon.
Why Lidl launched the drink
The supermarket says the launch comes as searches for prebiotic drinks have surged by more than 5,000% over the past three months, indicating growing consumer interest in gut health. The drink contains tapioca fibre and Jerusalem artichoke, both of which support regular digestion and gut health, and boost heart health.
Lidl describes the passionfruit and mint option as "bursting with tropical flavour", while the ginger and lemon variant is a blend of "zesty citrus with a warming ginger kick".
Health benefits and expert guidance
According to Heart UK, eating more fibre is associated with a lower risk of heart disease, type 2 diabetes and obesity. The charity states: "Studies have found that people who eat more fibre have a lower body weight, lower blood pressure and lower cholesterol – which is great for your heart health."
A Lidl spokesperson said: "Whether you’re reaching for a refreshing pick-me-up or simply fancy something a little different from your usual soft drink, these fibre-filled drinks are made for effortless sipping. Best enjoyed straight from the can, they’re perfect for on-the-go refreshment - from the morning commute to an afternoon reset."
Fibre intake recommendations
The NHS advises that most adults should aim for 30 grams of fibre per day, though daily targets can vary by age and sex. Guidelines recommend about 25 grams daily for women under 50, 38 grams for men under 50, 21 grams for women over 50, and 30 grams for men over 50.
Both soluble tapioca fibre and Jerusalem artichoke are good sources of prebiotic dietary fibre. They lower glycemic responses and support the digestive system by feeding beneficial gut microbes. However, their unique chemical structures affect how quickly they break down in the digestive tract and how well the body tolerates them.
The role of fibre in the body
Dietary fibre is essential because the body cannot digest it. Unlike fats, proteins, or simple carbohydrates, fibre passes relatively intact through the stomach, small intestine, and colon, where it performs vital tasks that regulate digestion, support metabolism, and protect against chronic diseases.
Fibre nourishes the gut microbiome. Because human enzymes cannot break it down, soluble fibre reaches the large intestine intact, where beneficial bacteria ferment it to grow and diversify. This fermentation produces short-chain fatty acids like butyrate, which reduce inflammation and protect the colon lining against diseases such as colorectal cancer. Fibre also expands in the stomach and slows digestion, triggering long-lasting satiety cues that aid weight management.
Jerusalem artichoke is one of nature's richest sources of inulin, a highly fermentable soluble prebiotic fibre. It passes intact into the large intestine, where it feeds health-promoting bacteria such as Bifidobacteria. As these bacteria consume the inulin, they produce short-chain fatty acids that nourish the gut lining and strengthen the immune system. The main drawback is that rapid fermentation can trap gas in the colon, causing bloating, cramps, or digestive distress in sensitive individuals.
Soluble tapioca fibre, derived from the cassava root, is a more stable resistant starch that undergoes slower fermentation. It provides a steady release of beneficial fatty acids without the sudden gas production associated with inulin, making it suitable for people with sensitive stomachs. However, it is a processed fibre isolate rather than a whole-food source like Jerusalem artichoke.
A high-fibre diet reduces cholesterol by forcing the liver to clear circulating fats from the bloodstream. Soluble fibre absorbs water in the digestive tract, forming a gel that binds to bile acids made from cholesterol. The body normally recycles 95% of these bile acids, but the fibre gel escorts them out through stool, prompting the liver to remove LDL ('bad') cholesterol from the bloodstream. When remaining soluble fibre reaches the large intestine, bacteria ferment it, producing short-chain fatty acids such as propionate, which travel to the liver and act as a natural "off switch" to prevent new cholesterol synthesis.
