One more issue with this generally awesome mod.
Food and oxygen weight. For one day one Kerbal need 1 food and 1 oxygen. It is currently 50kg of food and 10 kg of oxygen.
Average human require about 0,5 kg food and 550 liters (660 kg) of oxygen per 24 hour, so 0,125 kg food and 137,5 liters (165) of oxygen per Kerbal Day.
If you aim to have realistic Earth-like values, food is way to heavy (100 times) and oxygen is way too light (46 times). Unless Kerbals are not at all like humans and they compensate lack of oxygen with crazy amounts of food.
Still great mod