Meat is not essential for human diet. However, many of the nutrients found in meat are essential for our health. Protein, iron, and B vitamins are just some of the nutrients found in meats. Meat provides our bodies with proteins, vitamins, and minerals that are necessary for proper muscle and organ function.
Sure there is a pill for everything but its the same as getting a IV with fluids instead of drinking. You will still be thirsty… again finding balance is the key, not every meal requires meat.
a quick google says that for cashews its mostly the same (waterwise), sorry for crap formatting
Foodstuff Quantity Water consumption, litres Beef 1 kg 15,415 Sheep Meat 1 kg 10,412 Pork 1 kg 5,988 Butter 1 kg 5,553