The concepts of "incomplete proteins" and "combining foods" are either myths or misunderstandings.
I decided to use CronOmeters nutrient tracking abilities to prove that peas are complete proteins and that combining them with corn doesn't do any good.
About halfway thru my "experiment", I realized that CronOmeter tracks 11 amino acids. But there are only 9 essential amino acids. The two extra amino acids are cysteine and tyrosine, which are considered "conditionally essential". A little further reading and I discovered that in most cases - the "conditionally essential" are NOT essential. Which means that our bodies can synthesize them anyway.
(I'm not sure why CronOmeter tracks them. As far as I can tell - they are not "essential" unless you are sick or a baby, and can't produce them yourself. Maybe they are important for pregnant mothers. but this goes beyond my understanding of the whole thing - maybe someone else can fill me in.)
if you don't consider the conditionally essential amino acids, it only takes 7 cups of peas, Less than 900 calories to more than meet my protein requirements. If I ate
only 7 cups of peas I would be calorie deficient but not protein deficient.
To take this one step further, I put 15 cups of peas in my meal plan. I hit 1800 calories and over 100% of every amino acid (even the two conditional ones), and 120 grams of total protein. This is not a really good idea to do in real life for various reasons. But it just goes to show, that vegetables are Complete Proteins. If you get enough calories - you get all the amino acids. (by the way, you can do this with lettuce even).
There is no reason as far as protein goes to combine anything with peas, and corn wouldn't be a better choice than anything else. It would take 14 cups of corn for me to meet my protein requirement. and that would be almost twice the number of calories of peas. As far as protein goes - it would be more "calorie efficient" to eat just peas than peas
and corn. (Dr. Fuhrman would say that peas are more nutrient dense than corn)
Peas and corn
do make a tasty vegetable combo. And are really nice toppings on a salad. Sunflower seeds and almond slivers are also good toppings. And while you are at it, add some beans. A good healthy salad can meet almost half your protein requirements before meeting half your caloric requirements.
One of the best articles on the myth of complete proteins and food combining is here.
It's a little long but probably the best article on the subject I've seen.
https://michaelbluejay.com/veg/protein.html
For more on amino acids
https://en.wikipedia.org/wiki/Essential_amino_acid