>>21483012 (OP)Variety. Construct a staple that you like, then cycle around variables to your preference. You should be taking a shit daily from your diet, and your pee shouldn't be honey-yellow.
Heart disease is the most commonly preventable thing you can avoid that kills a ton of people yearly. Doesn't mean you need to remove oil or sugar or red meats entirely - just limit some particular sources. Also remember to get your cardio and strength exercise in; weak old-man bones ain't good.
>leafy green veggiesCabbage/brussel/kale/broccoli/arugula/etc. = cruciferous, spinach
>nice veggies Onions, carrots, celery, potatoes, sweet potatoes, corn, peas, cucumbers, tomatoes, bell peppers, chili peppers of all sorts, other edible nightshades
>fruity fruits Bananas, oranges, apples, berries, avocados, mangos, sweet melons
>beany seedsLentils, kidney, garbanzo, black beans, pinto, great northern, soy
>nutty seedsPeanuts, almonds, walnuts, cashews, pistachios,
>seedy seedsSunflower, pepitas (green pumpkin seeds), flax, pine
>grainy seedsRolled oats, corn masa, quinoa, rice, couscous, bread (limit certain ones)
>seed oilsExtra Virgin Olive oil, maybe cheaper cooking olive oil, a good neutral cooking oil
>dairy-esqueMilk, plant milks (soy, almond, cashew), yogurt, tofu, cottage cheese, better tasting cheeses
>animal proteinFish (sardines, salmon, anchovies, tuna; be concerned about not getting an overfished one), Chicken, Pork, Beef