Protein most certainly raises my blood sugar levels, no doubt about it at all.
I have a few working beta cells left still producing a little insulin. On a LcHf diet I can control my BG levels without insulin and without meds. I consume less than 50g carbs per day and my protein varies from just under 100g to around 150g per day. Whenever if I have a few high protein days, my BG levels rise, often not straight away, sometimes even days later.
For example, a few weeks back I thought I would up my protein level in order to put on a little weight (my BMI is 21), nothing really happened for 3 days, then I noticed my BG levels at pre breakfast had risen by one unit (from 6s to 7s), I reduced my protein levels immediately, but it took 3 days to get them back down again. No change in carbs, just protein.
My rule of thumb is 10g protein = 5g carbs.... This is what my meter tells me.... But not 2hr later, more like 4 hrs later and then only a slight increase in BG levels but for a much longer time.
I am now gradually cutting back on my protein levels, and my pre breakfast readings are coming down (now mid 5s) but my weight also seems to be coming down...... No carb changes, just protein.
Diagnosed T2 in sept 2013, BS levels 20+. BMI 22, age 58. Requested a GAD test in November, came back very high 2,000+, doc said I would be T1 within weeks, but presently still LADA taking no insulin or medication, and striving to keep my BS readings one hour after meals under 7.8 in order to keep as many insulin making pancreas beta cells as possible for as long as I can.
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