Diabetes can cause serious long-term health problems if left untreated or not treated properly.The longer you have diabetes, and the less controlled your blood sugar, the higher the risk of complications.Some of the complications can be disabling or even life-threatening.But the foods you choose to eat in your daily diet can make a big difference, whether you are living with diabetes or not.Diabetes UK says the key to managing and preventing diabetes is a balanced diet. Starchy foods, such as potatoes, meat, fish, eggs, pulses, beans and nuts are recommended. But people with diabetes should try to minimise their intake of industrial trans fats as they can have a negative impact on blood sugar levels, according to nutritionists at Healthline.Trans fats are created by adding hydrogen to unsaturated fatty acids in order to make them more stables, and the site says you should avoid frozen dinners that contain them.It adds: “Although trans fats don’t directly raise blood sugar levels, they’ve been linked to increased inflammation, insulin resistance and belly fat, as well as lower ‘good’ HDL cholesterol levels and impaired arterial function.“These effects are especially concerning for people with diabetes, as they are at an increased risk of heart disease.” Symptoms of diabetes Fri, August 19, 2016 Diabetes is a common life-long health condition. There are 3.5 million people diagnosed with diabetes in the UK and an estimated 500,000 who are living undiagnosed with the condition. Play slideshow People should be aware signs and symptoms of diabetes are not always obvious and the condition is often diagnosed during GP check ups. Other foods that could contain trans fats include margarines, peanut butter and spreads.Fruit and vegetables form part of a healthy, balanced diet – everyone should eat at least five portions a day, as recommended by health guidelines. But a certain type of fruit should be avoided if you, or are at risk, of diabetes.While fruit is a great source of several important vitamins and minerals, including vitamin C and potassium, dried fruit should be ditched.Healthline explains: “When fruit is dried, the process results in a loss of water that leads to even higher concentrations of these nutrients.“Unfortunately, its sugar content becomes more concentrated as well.“One cup of grapes contains 27 grams of carbs, including 1 gram of fibre. By contrast, one cup of raisins contains 115 grams of carbs, 5 of which come from fibre.“Therefore, raisins contain more than three times as many carbs as grapes do. Other types of dried fruit are similarly higher in carbs when compared to fresh fruit.”If you have diabetes you do not have to give up fruit altogether. Sticking with low-sugar fruits like fresh berries or small apple can provide health benefits while keeping blood sugar levels normal.Diabetes can cause serious long-term health problems if left untreated or not treated properly.What are the complications that can arise?