自产农产品对健康的好处

Complicating matters is that the optimal temperature differs from plant to plant, she says. Tomatoes, for example, should not be refrigerated and are generally best if stored between 50 and 55 degrees Fahrenheit. Despite the different needs of certain fruits and vegetables, they may be shipped together.
她说，麻烦的是植物的最佳温度各不相同。例如，番茄必须冷藏，一般最佳冷藏温度是50-55华氏温度。即使不同水果和蔬菜需要不同温度，但是它们还是一起装船运输。

In terms of taste, fresh is best. Supermarket tomatoes are frequently picked green before they have the chance to fully develop flavor, a technique that helps them withstand transport, says Raoul Adamchak, coordinator of the Market Garden at the UC Davis Student Farm. (Later, they are artificially ripened with ethylene.) Moreover, growers who ship their produce cross-country may favor certain varieties over others not for their taste, but because they travel well. Heirloom tomatoes, for example, are too delicate to be shipped and are often absent from store shelves.
从味道方面来说，新鲜是最美味的。超市里的番茄通常在未熟，不能完全释放它味道的情况下就摘了，这样可以帮助它们抵抗运输过程引起的营养流失，加州大学戴维斯分校商品菜园的协调者Raoul Adamchak说。（后来，他们用乙烯人工催熟。）另外，把农产品运送到世界各地的种植者会更喜欢某些种类，不是因为它们的味道，而是因为它们运输得好。例如，祖传番茄太脆弱而不能用船运送，所以商店货架上常常缺乏。

For your own garden, relish the freedom to pick among the most flavorful varieties (more than 400 types of tomatoes exist). And don't neglect color: Compounds called phytochemicals provide protection for plants and may give humans some padding against aging. Lycopene and beta carotene are phytochemicals; anthocyanins are another kind. Found in blueberries and cranberries, anthocyanins have been shown to aid memory. Eating an array of colors, says Pivonka, will ensure you get an assortment of nutrients and protective phytochemicals.
在自己的花园里，自由采摘品味最美味的种类（有超过400种番茄）。不要忽视颜色：一种叫做植物素的化合物给植物提供保护还补充帮助人类对抗衰老。番茄红素和β-胡萝卜素都是植物素；花青素是另一种化合物。已经指出蓝莓和蔓越橘中所含的花青素可以帮助记忆。Pivonka说，吃各种颜色的食物可以确保你获取各种营养和有保护作用的植物素。

Still, home-grown produce may have only a slight nutritional advantage over the store-bought kind. What really matters, says Pivonka, is that you eat more. Half your plate should contain fruits or vegetables at every meal, she says.
但是，自产农产品比商店买的农产品只有一点点营养优势。Pivonka说，真正重要的是你吃更多。她说，每餐都要有一半的菜是水果和蔬菜。