Kale seems like another one of those foods that has gained a ton of popularity in recent years. I was exposed to it at a young age because my Dad grew it in our garden, but I don’t recall seeing it on restaurant menus or in grocery stores like I do today. After doing a little research, it looks like my assumption isn’t totally unfounded.
Statistics from the Department of Agriculture show that the number of farms that produced kale between 2007 and 2012 increased by 60% (source). Farm to table restaurants, veganism and “food porn” (definition) are just a few trends that surely contributed to kale’s recent popularity, but the cruciferous veggie’s superfood status is what keeps its hype train a rolling.
Kale belongs to the Brassica genus, which includes other nutritious veggies like collard greens, cabbage and turnips. The macronutrient breakdown for kale is pretty unique as far as veggies go. One cup of raw kale contains 7 grams (g) of carbs, 3 g of protein and almost 1 g of fat. May not seem like much but kale’s 3 g of protein is three times more than spinach and 30 times more than iceberg lettuce. Also, the nearly 1 g of fat contains 121 mg of the omega 3 fatty acid alpha linolenic acid, which certainly contributes to kale’s ability to improve cardiovascular health (source).
Kale’s effect on cholesterol is extremely interesting to someone like myself who has high LDL cholesterol, which is currently thought of as “bad” cholesterol¹. A 2008 study demonstrated that the daily consumption of kale juice could raise HDL (good) cholesterol while lowering LDL cholesterol. Kale also contains bile acid sequestrants which help lower the amount of total cholesterol in our bodies (source). However, the way you prepare kale can have a major effect on which of its nutrients you end up absorbing.
¹ – Recent research suggest that LDL particle number is more important to predicting heart disease than LDL cholesterol (source)
Both raw and cooked kale contain a significant amount of micro & macronutrients, but the latter appears to allow for better absorption of those nutrients. Not only does steaming kale enhance its cholesterol lowering abilities, it also greatly reduces the oxalic acid contained in the plant. Oxalic acid can bind to important nutrients like calcium and iron rendering them useless to us and lead to kidney stones in certain individuals (source). However, I want to be clear that after researching the potential detrimental effects of eating raw kale, its beneficial aspects still out-weight any possible hazards.
You can see above that one of Shannon and I’s preferred kale preparation methods is a casserole that combines kale with sausage, butternut squash and liberal amount of shredded parmesan. If you’d like the recipe to this mouth-watering dish, feel free to email me at firstname.lastname@example.org. We could also setup your first FREE fitness consultation. Let ETTampa help you optimize your life by improving your fitness.