Emerging guidance reveals how specific foods and drinks, from grapefruit to sugary snacks, can significantly influence blood sugar control and the efficacy of diabetes treatments, urging a rethink of daily dietary choices.
People with diabetes are often told to focus on medication, but diet can shape how well treatment works. Certain foods and drinks can alter blood glucose, while others may change the way diabetes medicines are absorbed or tolerated. That makes meal choices an important part of day-to-day diabetes control, according to an article in Asharq Al-Awsat drawing on guidance from Verywell Health.
One of the main cautions concerns grapefruit and grapefruit juice. Mayo Clinic says compounds in grapefruit can interfere with the liver enzyme CYP3A4, which helps break down several prescription medicines, including some used for diabetes. That can change how strongly a drug works. The concern is broader than glucose control alone, because many people with diabetes also take statins, and grapefruit can raise levels of some of those cholesterol-lowering drugs, increasing the risk of muscle pain and, in severe cases, kidney damage.
Alcohol is another common problem. Mayo Clinic says the liver prioritises processing alcohol over releasing glucose, which can trigger dangerous drops in blood sugar. Healthline and WebMD note that the risk is greater when alcohol is combined with medicines that stimulate insulin release. Alcohol can also add calories and carbohydrates, which may contribute to weight gain and make blood sugar management harder over time.
The article also warns against foods with a high glycaemic index, such as fizzy drinks, sweetened juices, white bread, white rice, processed cereals, cakes, biscuits and sweets. These foods are digested quickly and can cause sharp spikes in blood sugar. It also flags heavy, fatty meals, especially fried foods, because they can worsen nausea and digestive upset. That matters for people taking metformin or GLP-1 medicines, which already commonly cause stomach side-effects. Healthier choices, the article says, include fruit, vegetables, wholegrains, lean protein, unsweetened dairy and healthy fats.
Disclaimer: This content is for informational purposes only and is not intended to be a substitute for professional medical judgment, advice, diagnosis, or treatment.
