Humalog 300iu 3ml cartridge
Each ml contains 100iu
3ml - 300iu
This is the fastest insulin available, peaks within 10/15 minutes and out of your system within 2.5/3 hours
Advised to start low dosed, 4iu and work up towards 8iu, those that know what they are doing and coached end up with higher dosing.
General rule, 10g of carbs per iu, can adjust once you know how your body feels
Most say to avoid fats whilst on insulin, though insulin is responsible for shuttling carbs only, but to be safe, avoid eating fats 3 hours before slin and 4 hours after slin.