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专家:均衡饮食更关键 无需执着于有机标签

有机蔬果的价格通常较高,但营养学专家指出,若预算有限,不必担忧,因为普通食品与有机食品的营养价值基本一样,最重要的是保持一种均衡摄入蔬果的健康饮食模式。

《纽约时报》的报道,有机食品的高价位并不等同于更高的营养价值。阿拉巴马大学伯明翰分校营养学助理教授戴维斯表示,在蛋白质、碳水化合物和脂肪等常量营养素方面,有机与普通食品并无差异。

尽管某些研究显示,有机食品在微量营养素(如维生素、矿物质和抗氧化剂)含量方面可能稍高,但这些结果并不一致。戴维斯说,目前没有足够证据证明这些微小差异能显著改善健康。

弗吉尼亚大学医学院儿科副教授马修则进一步强调,大部分大规模研究尚未得出明确结论。“这些研究只是个别案例,还未在大范围内重复验证。”

那么,为何有机食品价格更高?

美国农业部对有机食品生产者设有严格要求。认证有机农产品必须禁止使用大多数合成农药和除草剂;肉类、禽类、乳制品和鸡蛋须来源于全年能自由活动、未使用生长激素或抗生素饲养的动物;此外,有机产品不得采用基因工程技术。

专家指出,不使用合成农药和除草剂使得有机食品生产需要更多劳动力。例如,有机农民由于不能使用强效除草剂,可能需要额外雇工来清除杂草,从而推高生产成本。

...

#饮食 #营养 #健康 #健康饮食 #有机食品



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专家:均衡饮食更关键 无需执着于有机标签

有机蔬果的价格通常较高,但营养学专家指出,若预算有限,不必担忧,因为普通食品与有机食品的营养价值基本一样,最重要的是保持一种均衡摄入蔬果的健康饮食模式。

《纽约时报》的报道,有机食品的高价位并不等同于更高的营养价值。阿拉巴马大学伯明翰分校营养学助理教授戴维斯表示,在蛋白质、碳水化合物和脂肪等常量营养素方面,有机与普通食品并无差异。

尽管某些研究显示,有机食品在微量营养素(如维生素、矿物质和抗氧化剂)含量方面可能稍高,但这些结果并不一致。戴维斯说,目前没有足够证据证明这些微小差异能显著改善健康。

弗吉尼亚大学医学院儿科副教授马修则进一步强调,大部分大规模研究尚未得出明确结论。“这些研究只是个别案例,还未在大范围内重复验证。”

那么,为何有机食品价格更高?

美国农业部对有机食品生产者设有严格要求。认证有机农产品必须禁止使用大多数合成农药和除草剂;肉类、禽类、乳制品和鸡蛋须来源于全年能自由活动、未使用生长激素或抗生素饲养的动物;此外,有机产品不得采用基因工程技术。

专家指出,不使用合成农药和除草剂使得有机食品生产需要更多劳动力。例如,有机农民由于不能使用强效除草剂,可能需要额外雇工来清除杂草,从而推高生产成本。

...

#饮食 #营养 #健康 #健康饮食 #有机食品

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Should You Buy Bitcoin?

In general, many financial experts support their clients’ desire to buy cryptocurrency, but they don’t recommend it unless clients express interest. “The biggest concern for us is if someone wants to invest in crypto and the investment they choose doesn’t do well, and then all of a sudden they can’t send their kids to college,” says Ian Harvey, a certified financial planner (CFP) in New York City. “Then it wasn’t worth the risk.” The speculative nature of cryptocurrency leads some planners to recommend it for clients’ “side” investments. “Some call it a Vegas account,” says Scott Hammel, a CFP in Dallas. “Let’s keep this away from our real long-term perspective, make sure it doesn’t become too large a portion of your portfolio.” In a very real sense, Bitcoin is like a single stock, and advisors wouldn’t recommend putting a sizable part of your portfolio into any one company. At most, planners suggest putting no more than 1% to 10% into Bitcoin if you’re passionate about it. “If it was one stock, you would never allocate any significant portion of your portfolio to it,” Hammel says.

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