I've lost weight and got BG down a lot with low carb high fat.................results below.
I aim for less than 50g carbs daily, but often end up at 70-80g.
I aim for 80% of my calories from fat = about 60% of fat by food weight.
So, 50 grams carbs, 70 grams protein, 150 grams fat roughly (lots of double cream).
But everyone is different - experiment, test your BG regularly, see what different foods do to you.
Most people find that BG control and weight loss are better, the lower carb they can go.