There are a bunch of different types out there — milk, whey, egg, casein, soy, rice, etc.. (justjfaye.com)
You would know this if you actually watched things instead of typing out whatever falls out of your brain. (justarsenal.com)
Of course, you can just type out words without paying attention to any of these features — but mastering them will help you type faster and save time while entering text. (howtogeek.com)