If you test him at 9:30 AM and his BG number is high enough to give him the Insulin
With Lantus you test, feed and shoot all within 5-10 minutes.
If you shoot at 10:00 AM you withhold food starting at 8:00 AM ,you can give him a few low carb treats at 7:30 AM
Same goes for the PM cycle
Lantus doesn't kick in until 2 hours after you shoot
If you test , feed and shoot at 9:30 AM then you withhold food starting at 7:30 AM you can give him a few low carb treats at 7:00 AM
Same goes for the PM dose
What kind of treats are you talking about
Here is some information on freeze dried treats
Click on this link and look at post #6. Numbers are to the right
You can get any freeze dried treats ,information is there
https://www.felinediabetes.com/FDMB/threads/brand-new-many-questions-3.255627/#post-2878703
Freeze dried treats that only contain one ingredient (the meat or fish) is zero carb and fine to feed to a diabetes
@Charlie'sMom22