from the can, that is how the cartoon animation we watch from television. Popeye only squeeze the most two canned spinach to have powerful biceps. Entertainment world full of imagination though.
For Longevity Foods, we eat spinach raw:
CAUTION AND CAUTION: Oxalic acid is a key ingredient in the development of kidney stones. Individuals who are prone to kidney stones should not include too much spinach in their diet. Just eat the amount that fill your bare fist is enough per day.
Spinach: A powerful source of free-radical fighting antioxidants, spinach is also rich in many important nutrients and should be included in your longevity diet.
While spinach contains plenty of organic-iron, it is not a good source since the oxalic acid found in spinach binds to iron, so that less that 5% of the iron is actually absorbed by the body.
Law of Natural Balance: Every herb bearing seed, and every fruit yielding seed should be your food for sustenance.
Your empty stomach(volume) though has the size of your two fists put together, it can be 'force' 80 times of this empty size. Just eat two fresh fruits, like an apple and a pear, your stomach is already 'filled'. Wait for another 30 minutes, your stomach is ready for another round of food intake. Spread your food intake throughout your own waking hours. 'Three-meals a day' concept has caused many sickness when people stuff too much quantity within the 20 to 30 minutes, and expect the stomach to 'digest all those amount within the next 30 minutes to 2 hours.
In fact, cooked food takes longer time to digest compared to fresh raw food like fruits and vegetables.
Cruciferous vegetables : Bok choy, collar, kale, cabbage, cauliflower, mustard greens, Brussels sprouts, radishes, and turnips contain a type of flavonoid that activates liver detoxification enzymes. Toxicification happens to anyone who avoid these wonderful and powerful detoxificators vegetables daily.
The crucifers are noteworthy due to a wide array of sulfur-containing compounds, but also contain anti-cancer and antioxidant vitamins, all in organic form. They regulate white blood cells and cytokines; white blood cells are the scavengers of the immune system and cytokines act as " messengers," coordinating the activities of all your immune cells.
Since the organic sulfur compounds can inhibit thyroid function, they are best cooked (but not overheat )to reduce this tendency. Steamed mustard greens or kale with onions, garlic, and flaxseed oil (added after steaming) is a highly recommended and delicious longevity dish.