Diabetes occurs when the body is not able to regulate blood sugar (glucose) levels very well.
A team of researchers from the Department of Nutrition at Arizona State University conducted an investigation involving 19 non-diabetics, eight of whom were insulin-sensitive, 11 resistant, and ten people with diabetes.
Not all of the participants were taking diabetes medication at the time of the trial. The fasting people were randomly assigned to consume vinegar or a placebo drink.
A vinegar drink consists of 20 grams of apple cider vinegar, 40 grams of water, and a saccharin teaspoon (an artificial sweetener).
Two minutes after consuming vinegar or a placebo, the participants ate a test meal.
The test meal consisted of white bread, butter, and orange juice – with a total of 87 grams of carbs.
Samples of blood glucose were collected at fasting, 30 minutes and 60 minutes after a meal.
During fasting, blood glucose concentrations were elevated in the diabetes group.
The researchers note: “Compared to a placebo, taking vinegar increases insulin sensitivity during the 60 minutes after a meal in people with insulin resistance.”
People with diabetes also improved insulin sensitivity after consuming vinegar compared to the placebo, although it was only slight.
The global diabetes community cited research showing that apple cider vinegar can significantly reduce post-meal blood glucose.
The authors noted the “importance of maintaining acceptable blood glucose concentrations” for diabetics.
They added, “There is great interest in identifying foods and diet patterns that will help diabetics manage their condition.”
And while apple cider vinegar can help manage diabetes, the most effective way is to avoid refined carbohydrates and sugar.