Can fibre lower HbA1c by 1%? Experts explain what's realistic

Nutritionist Dr Rebecca Pinto, in a recent Instagram video, highlighted the role of soluble fibre in managing blood sugar, saying: “Managing diabetes does not mean cutting sugar. It's just one simple thing that most people overlook. Just add 10 to 12 grams of soluble fiber to your diet and your post-meal sugar spike will significantly reduce. And research shows that diabetic patients need 25 to 38 grams of fiber every day, out of which 10 to 12 grams need to come from soluble fiber. And it's found in oats, beans, apple peels, and psyllium husk. This is actually way more effective than simply cutting carbs because fiber controls blood sugar, and it does not ask for extra insulin from your body. Studies have also shown that increasing soluble fiber can reduce your HbA1c levels significantly from 8.5 to 7.5 in 8 weeks.” But how accurate are these claims?