You should know by now that flaxseeds are a good source, as is the green vegetable purslane, but the best source of omega-3's in the vegetable kingdom is hemp seeds. The problem with hemp seed oil is that like flaxseed oil it is unstable and goes rancid quickly. It is also harder to find than flaxseed oil. Since the U.S. government doesn't support growing hemp for seed, what hemp oil there is comes from Canada from heat-sterilized seeds and is often neither fresh nor tasty. I think the best way to get the benefits of hemp seed oil is to eat the seeds themselves, as I also recommend doing with flax seeds.
Hemp seeds are delicious and are very easy to prepare.
Just pour half a cup of them into a dry skillet placed over medium-high heat and stir them around until they begin to toast and pop. At that point, stir in a teaspoon of olive oil and then season with salt and pepper or a little soy sauce, red pepper, garlic powder or herbs, and eat them as a snack. Prepare only as much as you can eat since the cooked seeds don't keep well. I understand that hemp seeds can also be ground and substituted for up to one fourth of the flour in any recipe, but I haven't yet had a chance to try it. Share the anwers, in the Boards.