What is a vegetable?

What are types of vegetables? 
brussels sprouts
kale
cauliflower
bok choy
artichoke (1)
arugula (1)
asparagus
bell peppers
beet greens
beets
bok choy
broccoli
broccoli rabe
brussels sprouts
butternut squash
green cabbage
cabbage (1)
carrots
cauliflower
celery
chives
collard greens
crookneck squash
Daikon radishes
dandelion greens
eggplant
endive
garlic
green onion
jicama
kale
kimchi
kohlrabi
leeks
lettuce
mushrooms
mustard greens
okra
red onions
yellow onions
parsnips
potatoes
pumpkin
purple sweet potato
radicchio
radish
rutabaga swede
sauerkraut
seaweed
shallots
spaghetti squash
spinach
sweet potatoes
swiss chard
tomatillo
tomatoes
turnips
watercress
water chestnut
zicchini (1)

What do vegetables contain?

Can antinutrients be reduced in vegetables?
Leafy vegetables can be soaked to reduce some of their calcium oxalate. (2)

Resources
1. https://www.nutritionadvance.com/healthy-foods/types-of-vegetables/
2. https://www.healthline.com/nutrition/how-to-reduce-antinutrients#TOC_TITLE_HDR_3

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