I stick to free range eggs.

20G of calories per day or less.

You got it wrong there... no one could live long on 20g of calories a day... a male needs at least 1800/day.

It is 20g of carbohydrates/day, roughly 10% of your daily intake. But to be honest most people stay in ketosis as long as they stick to no more than 30g of carbs/day. I'm sticking to between 20-30 grams of carbs a day anyway.