A groundbreaking new clinical trial reveals that people with type 2 diabetes can enjoy a glass of 100 % orange juice at breakfast without adversely affecting blood sugar levels.

The study, published in the international journal Nutrition and Diabetes, compares the effects of consuming whole oranges and fruit juice on blood sugar levels and insulin response, with surprising results.

Type 2 diabetes is a growing global health issue, affecting nearly 4.6 million people in the UK alone, with an estimated 1.3 million more potentially undiagnosed, according to Diabetes UK. Lifestyle factors, especially diet, play a critical role in managing and preventing this condition.

Conducted by scientists at the University of Hasselt in Belgium, the study involved normal-to-overweight adults with well-controlled type 2 diabetes. Participants consumed a standard high-carbohydrate breakfast on three separate occasions, each time paired with either whole orange pieces, a 250 ml glass of 100 % orange juice, or an orange-flavoured drink with added sugars.

Blood glucose and insulin levels were measured over four hours following each meal.

Lead researcher Dr. Kenneth Verboven explained: “We believed that the lowest blood glucose levels would be seen when someone ate fruit with breakfast while orange juice and a sugary drink would cause higher glucose levels. In fact, there were no differences. We think this was because most of the rise in blood glucose and insulin came from the bread eaten at our standard carbohydrate rich breakfast. The small amounts of sugars from the fruit or drinks were inconsequential.

“This doesn’t mean we recommend that people with diabetes should have drinks with added sugars at breakfast as these typically have no nutritional benefit. However, 100% orange juice is different as the sugars come directly from the fruit and it contains similar vitamins, minerals and bioactives to whole oranges. While fruit remains the healthiest addition to breakfast as it contains some fibre, a small daily glass of 100% fruit juice is a convenient alternative when fruit isn’t an option”.

A recent study from Ipsos commissioned by Swedish food tech company Picadeli found 86 % of Britain’s Gen Z adults fail to meet WHO guidelines for fruit and vegetable intake — incorporating a daily glass of 100 % fruit juice can help bridge this gap.

Pure orange juice and other 100 % fruit juices are classified as minimally processed, containing no added sugars, flavourings, or preservatives under both EU and UK law. Just one glass of orange juice provides over 80 % of the daily recommended intake of vitamin C, an essential nutrient that supports immunity and skin health.

Dr. Carrie Ruxton, award-winning nutritionist, commented: “With fruit intake alarmingly low across Europe, adding a small daily glass of fruit juice into your diet can be an easy way to make sure you consume important nutrients and vitamins. This study shows that you don’t need to avoid fruit juice if you have well-controlled diabetes and can instead benefit from the vitamins and minerals. Choosing a high fibre breakfast, such as oats or bran flakes, is a good way to help limit those blood sugar spikes”.

“Reduce, reuse, recycle”: for the KHS Group these three pillars of sustainability are a composite part of its corporate philosophy. The manufacturer of filling and packaging technology consistently focuses on resource-saving, recycling-friendly systems and solutions. Together with Austrian packaging expert ALPLA KHS has now developed a returnable PET container that at 55 grams is extremely light. The 1.0-liter bottle’s high recyclate content of 35 % also has a very positive effect on its overall ecobalance.

For decades the KHS Group has been heralded as a technological leader in returnable container systems, chiefly driven by its great innovative strength and striving to develop sustainable, future-proof plant engineering. The various partnerships it has formed with innovative figures in the industry have proved a further recipe for success. Together with ALPLA KHS has now developed a returnable PET bottle that is impressive with its low weight and high recyclate content. With this development the engineering company adheres to its maxim of “reduce and recycle”, states Arne Wiese, Bottles & Shapes product manager at the KHS Group. “We aimed to produce a returnable container system that’s as environmentally friendly as possible. Two parameters are of prime importance here: low weight and a high percentage of recyclate.”

Environmentally friendly: returnable bottle’s low weight convincing

By optimizing the bottle base and neck the packaging experts managed to considerably cut down on weight compared to conventional returnable PET containers. At 55 grams, on average the 1.0-liter bottle is ten grams lighter than its standard counterparts. Compared to glass containers it clocks up just a tenth of the weight on the scales. “This optimization means that the amount of material used is much lower. At the same time, fuel consumption and thus also CO₂ emissions drop during transportation,” Wiese explains. Both have a positive effect on the bottle’s ecobalance.

Despite less use of materials the returnable system is ideal for a high circulation. The PET bottle has good resistance to caustic, meaning that its quality and appearance are maintained even after numerous washing cycles.

Sustainable: packaging system with high recyclate content

The aspects of easy recyclability and the use of recyclate also played a major role in the bottle’s development. The environmentally-friendly returnable container is not only fully recyclable and thus remains in the recycling loop; its high recyclate content is also compelling. “We’ve had outstanding test results with preforms made of up to 35 % recycled materials; preforms containing 50 % recyclate are also feasible for some brands,” states Wiese. The PET system devised by KHS and ALPLA therefore more than satisfies the European Commission’s requirement that one-way PET bottles comprise 30 % recyclate by 2030.

The optimized preforms can be blown on all KHS stretch blow molders for returnable containers. These include the particularly resource-saving InnoPET Blomax Series V. The new packaging system is suitable for all types of beverage in the returnable container segment. “We’re convinced that we can place our ecofriendly PET bottle on the market quickly and successfully. Our aim is to implement the market launch in close cooperation with bottling companies,” Wiese concludes.