My urban homestead Producing food on a city lot

Medscape just published an article worth reading. The information is from a prospective study of older adults living in the community, and showed a direct linear relationship between consuming one or two servings a day of leafy green vegetables and slower cognitive decline. In fact, eating leafy greens daily offered the cognitive equivalent of being 11 years younger.

One expert neurologist asked to comment on the findings responded with confirmation: “This study adds to the rapidly evolving and convincing evidence that you are what you eat when it comes to brain health,” Richard Isaacson, Weill Cornell Medicine, New York City, said. “From a practical clinical perspective, regular intake of green leafy vegetables should be a standard part of a risk reduction paradigm to delay cognitive decline throughout the lifespan.”

Amusingly, another expert said that it was “too soon” to recommend leafy greens, and advised waiting for further confirmation from future studies, a typical recommendation for new drugs but not typically applied to foodstuffs that healthy people have been eating for millennia. I do of course see his point, which is not to jump into thinking of leafy greens as a cure-all, but really now. So here is my response as a gardener, a doctor, and an avid reader of research: don’t wait. Some of the longest-lived and healthiest populations in the world have had  markedly high  consumption of leafy greens. There is no downside and no dangerous side effect to worry about unless you are on warfarin. So just do it. You can read the article here if you want, and it contains a link to the study. Then, just do it. Grow them if you can. If you have a small garden patch, make an investment in your family’s health by filling it with greens. If you don’t garden, you can haunt your farmers market or start making foraging trips. If you prefer to eat salad, choose darker greens, not lettuce hearts or iceberg, and eat a big bowlful.

Right now I’m still eating last fall’s leafy greens from under frost blankets. The collards and Savoy cabbage held up best, and are uniquely delicious after exposure to cold. I harvested Swiss chard for people and chickens all last summer, and then put a frost blanket over half  the row.  The new leaves of spring are the meatiest and most delicious that a chard plant ever produces, and the protected ones are nearly eating size, while the unprotected ones will come in some time next month. Just be sure to get them before the central stalk starts to elongate, because they lose their sweet meatiness and get strangely dirty-tasting when the flowering stalk starts to form. Green alliums are coming up everywhere, and my nettle patch is sprouting strongly.

If you keep animals for food, feed greens to your animals (not nettles, but chickens do love the leftover cooked ones.) I have a carnivorous friend who eats supermarket meat and insists that he’s a secondary consumer of vegetables, and I keep trying to tell him that on the contrary, he’s just a secondary consumer of GMO corn. Unless you are buying animal foods known for a fact to be grassfed or pastured and not grain-finished, you aren’t consuming the nutrients of vegetables.  But if you keep your own, it’s astounding what quantities of greens chickens will eat if they get a chance, while cattle, sheep, and goats can be raised to butterball fatness on grass and greens alone if you have enough. The nutritional profile of the eggs and meat is enhanced and the animals are much happier. I’ll have more to say about meat in the near future.