Meats have a lot of amino acids, meatless foods however don't. Now that I'm a vegetarian how do I get all the amino acids I need? (What foods and how much of them)
Seeds, such as sunflower seeds and pepitas or pumpkin seeds, have a good amount of protein also. Mine are raw organic, and plain. They have between 7 to 9 grams of protein per 1/4 cup.
Also, there are vegetarian and vegan proteins on the market.
If you do dairy, there are many proteins with whey - which will supply more than enough of your required daily protein intake.
If you're vegan, there are many 'vegan' proteins such as rice and soy proteins. Some have other stuff in them, such as spirulina which is reputed to have other health benefits but it's up to you if you're going to try ones with extras or ones without extras.
Both types of packaged proteins can be found at local health food markets (such as Whole Foods, Wild Harvest, etc.).
There are also studies done on unfermented and fermented soy protein. The unfermented versions, in some studies, are known to have adverse health affects - like forming an imbalance in estrogen and resulting health problems, which is definitely not good.
However, fermented soy (tofu, etc.), doesn't seem to adversely affect health. It seems to be OK.
If you're tolerant to wheat, wheat gluten or tempeh is amazing also as far as protein content.
Amino acids are the building blocks of protein and are in all living things, plant and animal.
Our bodies can manufacture most amino acids. The few amino acids we can not manufacture ourselves are called essential amino acids since we must get them from our diet. Luckily all of these are easily available from plant foods.
There is no specific foods or ratios you must consume to get enough of all your amino acids; if you eat a varied diet of whole grains, fruits, and vegetables you will get all the protein and all of the amino acids you need.
The Frances Moore Lappé's "Diet for a Small Planet" discussed protein complementation where different plant foods are combined to increase protein availability for vegetarians. Some people still push this idea but it turns out that such combining of foods is not necessary. Virtually any diet that supplies sufficient calories also supplies sufficient protein and all of the essential amino acids.
Well, I am also a vegetarian, you can eat the foods that Filletofspam has put, or, go to your local Vitamin store and look up all of the vitamins that say protein, some even put that they have Amino Acids in them. Take them daily and you should be fine.
lentils and soy proteins (like in soy milk or soy nuts). Nuts in general also contain quite a bit of iron as well as raisins.