Is 3-4 cups of leafy greens enough veggies for the day?

are we talking just iceberg lettuce? Or are there also some kale, collards, spinach, bok choy, cabbage,etc. in that mix, too?

3.5 oz of leafy greens (not lettuce) is a serving of vegetable...roughly 2 cups. So 3-4 cups would be 1.5 - 2 servings of vegetables in a day. Personally, I'm a get your veggies guy and get about 4-5 servings of veg per day...and I drink 2 of those servings...something you may want to consider...the real deal is the best option, but I usually can't get that many plated vegetables when I'm on the go all day.

Greens are great...kale, spinach, chard, etc...they're very nutritionally dense; lettuce is pretty much a waste of time...very little nutritional value, mostly water...Romaine is better than iceberg though.

Have you ever read the nutritional information on the back of Romaine lettuce?
My son told me as I was fixing him a salad that his biology teacher said that lettuce had no real nutritional value, some are better than others like romaine but all and all they are of no real value.
I have heard this before as well so I looked on the package and on line just to see
Here is some of what I found - *By the way after reading this romaine was added to my leafy green smoothie rotation

1 – Protein. Believe it or not, romaine lettuce is 17% protein with 7.7 grams per head. It is also a complete protein! That means that it has all 8 essential amino acids, 9% RDA of some and up to 26% RDA of others.

2 – Calcium. One head of romaine has 206mg of calcium (about 21% RDA). Blend it with calcium rich fruits like papaya and oranges and you’ll get more calcium than a glass of milk!

3 – Omega-3s. One head of romaine lettuce contains 44% RDA of Omega-3 essential fats. Forget the tainted fish oils, reach for some leafy greens instead!

4 – More Vitamin C Than An Orange. One head of romaine contains 167% RDA of vitamin C while an average sized orange contains only 92%.

5 – Iron. One head of romaine contains 6mg of iron, which ads a significant source of iron to the diets of vegetarians and vegans.

6 – Romaine Lettuce is Rich in B-vitamins: Thiamine (B1) – 38% RDA, Riboflavin (B2) – 32% RDA, Niacin (B3) – 12% RDA, Pantothenic Acid (B5) – 18%, Pyridoxine (B6) – 36 %, Folate (B9) – 213%!

7 – Water. One head of romaine provides 16% of your daily water needs with about 20 ounces of water per head!

8 – Rich Source of vitamin A (as beta-carotene) and K. As with most leafy greens, romaine is super rich in beta-carotene with 1817% RDA per head and has 535% RDA of vitamin K.

9 – Low Levels of Oxalic Acid. If you have problems with calcium oxalate kidney stones, romaine lettuce might be a good choice for leafy greens since it is very low in this anti-nutrient.

10 – Mineral-Rich. Don’t let the lighter color of romaine lettuce fool you. This not-so-dark leafy green is rich in minerals. One head contains copper (33% RDA), magnesium (22% RDA), manganese (42% RDA), phosphorus (27% RDA), potassium (33%), selenium (5% RDA) and zinc (13% RDA).