So I saw this product at Costco and bought it. Premum Nutrition's High Protein Shake. It claims to have only 5g carbs out of which 3g are fiber and 1g is sugar. Oh, and it has 30g protein. 'Great', I thought. I don't really need to bolus for this. I tested before I drank it and I was at 92mg/dL. One hour after I drank the shake, I tested and found myself at 182mg/dL!!! I couldn't believe it and tested again with my spare meter. Same result! Still refusing to blame the protein shake, I thought it could be due to my dawn phenomenon (I had this shake for breakfast).
Yesterday, I tested again before drinking it - this time as a mid-afternoon snack. I was at 80mg/dL. Just to be on the safe side, I bolused myself for 10g carbs and drank the shake. 45min later I tested and was already at 142mg/dL!! There’s definitely something wrong - should I account for the 30g protein and bolus for that, too? Or is Premier Nutrition lying about the carb content of its protein shake? Anyone else with similar experiences?