I tested my BG before lunch and it was 10 which is lower than its been in a while. My lunch was a smoked mackerel fillet, big bowl of salad leaves, cucumber, celery, 6 olives, a tomato and a tbs of home made kidney bean salad. I drank water ( 4 glasses) and then did my 30 minutes aerobics workout. I only finished the exercise 20 minutes before testing my BG again and it had gone to 10.4. Would the exercise have pushed my BG up? I can't see anything in my lunch that would have done it