LocalHarvest Newsletter, April 24, 2014
Welcome back to the LocalHarvest newsletter.
We all know there are compelling environmental reasons to choose organic food. Many of us buy organic out of a belief that it must be healthier, too. In terms of avoiding the potential toxicity of pesticide residues, it is. But the case for organic food actually being more nutritious has been harder to make. Over the last few years, though, there has been a growing body of research demonstrating not only that organic food is better for us, but how.
This month I had a chance to speak with Jessica Shade, Ph.D., Director of Science Programs at The Organic Center. She pointed out that scientists haven't yet demonstrated that all organically grown food is more nutritious than conventional. Studies have focused on individual crops, and even then there are so many variables that it is difficult to isolate the impact of organic management practices. Still, research on a variety of fruit and vegetable crops has shown that organic methods yield produce with higher levels of certain nutrients and other good things. Research has established, for example, that organically grown spinach, peppers, oranges, pears, peaches, strawberries and tomatoes all have higher levels of Vitamin C than their conventionally grown counterparts. Other studies show significantly higher levels of antioxidants and other phytochemicals important for disease prevention.
So the research is beginning to back up what intuitively seems like it must be right: nix the noxious toxins, treat the soil well, and the resulting food will be more nutritious. But exactly why is this? According to Dr. Shade, there are two prevailing guesses. The first is that plants respond well to the somewhat increased stress level found in organic systems. "What?" you say, "My organic tomatoes lived a life of stress?" It's true: plants are less protected from weeds and pests in organic systems, and that puts a little more strain on them. Taken too far, the plants will not produce. There seems to be some optimal level of stress, though, where the plants' response may be to produce more antioxidants. That turns out to be a boon for human health.
The second hypothesis on how organically grown produce comes to be more nutritious has to do with plants' self-defense system. As insects start to gnaw on plants, the plants fight back by producing compounds to make plant unsavory to insects and, like the antioxidants produced under stress, many of those compounds are good for us. Remarkable, huh?
The above applies to produce, but the dairy story is equally interesting and possibly more impactful. The main known nutritional benefit of organic dairy as is the high level of omega-3 fatty acids it provides. As many are aware, diets low in omega-3 but high in omega-6 fatty acids are linked to increased rates of many diseases, and increasing one's level of omega-3s is a good thing for your health. In a study released last December, organic milk was shown to have a significantly lower ratio of omega-6 to omega-3 fatty acids than found in conventional milk, making it a very healthy choice. The reason is believed to be because in organic systems the cows are required to be on pasture longer, and the fresh grass they consume there leads to milk rich in omega-3s and low in omega-6s. According to Dr. Shade, the pasture rule in the organic law was put there for the cows' well-being, but it turns out that more time on pasture means healthier milk, so everyone wins. The study's authors encourage people to leverage their findings to maximum benefit by minimizing the intake of foods high in omega-6s while also shifting some of their fat intake to full-fat, organic dairy products.
For me, all this research points to an elegant intelligence inherent in organic food production systems. What's good for the plants and animals is also good for humans and the environment. To learn more about organic research, visit The Organic Center's website.
On a different note, if you are a farmer or other food producer, please see the announcement below about an important survey pertaining to the Food Safety Modernization Act.
Until next time, take good care and eat well,
From the LH Catalog
Plant a garden! You'll be glad you did. And if you get your seeds directly from some family farmers, you'll feel even better. We have a great collection of seeds for your garden. Take a look!
Not planting a garden this year? Join a CSA!
Planning a summer wedding? Many people are choosing fragrant dried lavender as a wedding toss. We have some available here!
CSAware: Make This Season a Good One
As part of our recent redesign of LocalHarvest, we linked CSAware users' products into the LocalHarvest catalog, making it a snap for LH shoppers to find and purchase CSA subscriptions and products. It's one more reason to choose CSAware for your CSA. If you'd like a tour of the software, let us know!
Attention Farmers and Other Food Producers: FMSA Survey
Last fall we wrote about the onerous changes the Food and Drug Administration was proposing in its new food safety regulations (FMSA). Our friends at the Farm and Ranch Freedom Alliance (FRFA) have been working tirelessly to ensure that the final regulations are fair to small farmers, but it is a steep hill. The FDA will release another proposed version of the produce safety regulations this summer, before the final version comes out in 2015.
To help prepare for the next round, the FRFA has put together a survey to get input from farmers and food producers on their current practices. The information they collect will help us analyze the impact of the proposed rule and form concrete recommendations for changes. If you are a farmer or food producer, please take a few minutes to respond to the survey.
Food from the Farm: Soaking Nuts
Writing about plants' natural defense systems reminded me of the almonds I have soaking in my kitchen. A few months ago I learned that most nuts contain natural enzyme inhibitors to keep them from sprouting prematurely. Unfortunately, these compounds also make them more difficult for humans to digest. This problem is easily addressed by soaking the nuts for an extended period of time in saltwater before slowly drying them. The bonus is that this treatment results in the best tasting nuts you have ever had, bar none. It really is worth trying. They are exceptional.Recipe...