Diabetes type 2 sufferers should eat tuna to lower blood sugar, an expert has claimed.
The protein-rich food source helps someone feel full without putting lots of sugar in the blood stream, keeping levels low, said dietitian Peggy Fletcher on Healthline.
“As protein doesn’t impact blood sugar levels, it doesn’t have a GI ranking and won’t raise blood sugar levels,” she said on the US-based website.
“Protein also increases satiety, so relying on protein to feel full instead of bread, rice, or pasta may be a good way to manage your blood sugar levels.
Other fish rich in protein include salmon, trout, albacore tuna, mackerel and halibut.
However, other experts disagree with Healthline’s claims.
Diabetes.co.uk warned eating protein could cause blood sugar levels to rise “a few hours” after it was eaten.
“Protein can be broken down into sugar by the body,” said the diabetes community website, “and the effects are more likely to be noticed if you are having meals with less carbohydrate”.
“But, it is broken down into blood sugar less efficiently than carbohydrate, and as a result the effects of protein on blood sugar levels tend to occur anywhere between a few hours and several hours after eating.
“Diabetes type 2 and diabetes type 1 sufferers may need to bear the effects of protein in mind if having a largely protein based meal,” they continued.
It is recommended that you consume 0.8 grams of protein per kilogram of body weight daily for people not suffering from diabetes, but those suffering from the condition may need significantly more.
Writing on the Harvard Medical School website, former Editor Daniel Pendick said: “Protein is essential to good health.
“For a relatively active adult, eating enough protein to meet the recommended daily intake would supply as little as 10 per cent of his or her total daily calories.”
Tuna contains approximately 30 grams of protein in each 100 grams. In the same amount, it also contains six grams of fat, and totals 184 calories, said the United States Department of Agriculture.
The government body also revealed tuna contains vitamin B12, A, B6, and some minerals such as magnesium.
Other foods which could help reduce blood sugar levels include garlic.
Healthline stated: “Garlic has the potential to help manage blood sugar levels.
“Reports show garlic intake can lower fasting blood glucose, which is your blood sugar level when you haven’t eaten.”
The smelly food could help diabetes type 2 sufferers if they consume more than 1.3 grams of the bulb for every ten kilograms of body weight, according to a 2012 study.
Published in the journal of Advances in Clinical and Experimental Medicine, researchers found feeding 12 diabetic rabbits this level of garlic produced the strongest hypoglycaemic, or blood sugar lowering, effect.