In line with the CDC, in 2015 only 12 percent of Americans met the suggestions for consuming fruit, and only nine percent consumed enough vegetables – also though eating sufficient fruits & vegetables as an ingredient of a standard nutritious diet reduces the chance of numerous chronic conditions, including cardiovascular disease, diabetes, some cancers, and obesity.

Therefore, only how much is enough?

The federal guidelines had previously been shown in a pyramid and guidelines had been described in servings, that could sometimes be complicated since one serving could mean, for instance, a complete piece of medium sized good fresh fruit or 1/2 glass of canned, fresh fruit or 3/4 glass of fruit juice. One practically needed a spreadsheet and a calculator to keep track.

Utilizing the newer introduction of the MyPlate graphic, it is a bit easier. The idea is usually to fill half of a person’s plate with fruits and vegetables; as well as the serving sizes have now been simplified to cups.

Daily fruit recommendation
Women 19 to 30 years old: 2 cups
Women 31+ years old: 1 ½ cups
Men 19 years old and up: 2 cups

Daily vegetable recommendation:
Women 19 to 30 years old: 2 ½ cups
Women 31 to 50 years old: 2 ½ cups
Women 51+ years old: 2 cups
Men 19 to 30 years old: 3 cups
Men 31 to 50 years old: 3 cups
Men 51+ years old: 2 ½ cups

What one cup means
Now here’s where it can get a little confusing again, because a cup isn’t always a cup.
FRUIT
Generally speaking, although not always, one cup of fruit or a ½ cup of dried fruit can be considered as 1 cup through the Fruit Group. Any fruit or 100 percent fruit juice counts (though remember that juice lacks the fiber of whole fruits). Here are a few other equivalents.

1 small apple (2¼” diameter) = 1 cup-equivalent
1 large banana (8-9″ long) = 1 cup-equivalent
½ cup of fruit cocktail = ½ cup-equivalent
½ medium grapefruit (4″ diameter) = ½ cup-equivalent
1 medium bunch of grapes (about 50 grapes) = 1½ cup-equivalents
1 medium mango = 1 cup-equivalent
1 small orange (approx. 2½” diameter) = ½ cup-equivalent
½ cup of 100% orange juice (4 fluid ounces) = ½ cup-equivalent
½ large peach (2¾” diameter) = ½ cup-equivalent
2 large plums (2½” diameter each) = 1 cup-equivalent
¼ cup of raisins = ½ cup-equivalent
VEGETABLES
Any vegetable or 100 percent vegetable juice counts; vegetables may be raw or cooked; fresh, frozen, canned, or dried/dehydrated; and may be whole, cut-up, or mashed. Within the vegetable group, there are sub-groups, of which you should strive to eat a mix of all: Dark-green vegetables; red and orange vegetables; starchy vegetables; beans and peas (which can also satisfy protein requirements), and other vegetables. The equivalents are often equal, but not always. Here is a list to give you a better idea.

½ cup of black beans (cooked) = ½ cup-equivalent
½ cup of broccoli = ½ cup-equivalent
1 cup of baby carrots = 1 cup-equivalent
½ cup of cauliflower = ½ cup-equivalent
½ cup of corn = ½ cup-equivalent
½ cup of green beans (cooked) = ½ cup-equivalent
½ cup of kidney beans (cooked) = ½ cup-equivalent
1 cup of iceberg lettuce = ½ cup-equivalent
1 cup of romaine lettuce = ½ cup-equivalent
½ cup of mushrooms = ½ cup-equivalent
2 slices of onion (raw) = ¼ cup-equivalent
½ cup of pinto beans (cooked) = ½ cup-equivalent
1 medium baked or boiled potato (2½-3″ diameter) = 1 cup-equivalent
1 cup of baby spinach (raw) = ½ cup-equivalent
1 large baked sweet potato (2¼” diameter) = 1 cup-equivalent
½ cup of 100% tomato juice (4 fluid ounces) = ½ cup-equivalent
½ cup of tomatoes (raw) = ½ cup-equivalent
½ cup of zucchini = ½ cup-equivalent

Reference

Here is how much fruit and vegetables you should be eating …. https://www.treehugger.com/health/heres-how-much-produce-you-should-be-eating-every-day.html