Dietary intake of long-chain ω-3 polyunsaturated fatty acids:: contribution of meat sources
Dietary intake of long-chain ω-3 polyunsaturated fatty acids:: contribution of meat sources
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DOI：
10.1016/j.nut.2005.05.009
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发表时间：
2006-01-01
期刊：
影响因子：
4.4
通讯作者：
Baghurst, K
中科院分区：
文献类型：
--
作者：
Howe, P;Meyer, B;Baghurst, K
目的：我们研究了肉类和鱼类的相对贡献的膳食摄入量的长链欧米茄-3多不饱和脂肪酸（LCn 3 PUFAs）。方法：一个数据库，详细介绍了4550种食物和4298食谱记录在1995年澳大利亚全国营养调查（NNS 95）进行了更新，新的脂肪酸组成数据，然后用于确定摄入量从24小时饮食召回的13858个人。这种方法进行了验证，从8321这些individuals.Results的食物频率问卷调查：脂肪酸摄入量相比，我们以前的估计从NNS 95除了LCN 3 PUFAs，这是相当高的。根据24小时召回估计的成人平均摄入量分别为75、71和100 mg/d的二十碳五烯酸、二十二碳五烯酸（DPA）和二十二碳六烯酸，总计246 mg/d。这比我们先前公布的LCn 3 PUFA摄入量估计值高出30%，差异可归因于某些食物脂肪酸组成的现有数据不准确，特别是肉类的DPA含量。我们估计，在NNS 95调查中，成年人消耗的LCn 3 PUFA中有43%来自肉类，家禽和野味，而鱼类和海鲜的比例为48%。牛排和腰子馅饼以及其他含肉的谷物产品占4%。牛肉和羊肉占总LCn 3 PUFA摄入量的28%，而猪肉和家禽分别占4%和10%。食物频率问卷调查产生了类似的results.Conclusion：肉类是LCn 3 PUFA的主要来源，特别是DPA，对于大多数澳大利亚人。当DPA包含在LCn 3 PUFA的定义中时，几乎一半的LCn 3 PUFA平均成人摄入量似乎来自肉类来源。(c)2006年爱思唯尔公司All rights reserved.
Objective: We examined the relative contributions of meat and fish to the dietary intakes of long-chain omega-3 polyunsaturated fatty acids (LCn3PUFAs).Methods: A database detailing 4550 foods and 4298 recipes recorded in the 1995 Australian National Nutrition Survey (NNS95) was updated with new fatty acid compositional data then used to determine intakes from 24-h dietary recalls of 13 858 individuals. This approach was validated with food frequency questionnaires from 8321 of these individuals.Results: Fatty acid intakes were comparable to our previous estimates from NNS95 except for LCn3PUFAs, which were considerably higher. Mean intakes in adults estimated from the 24-h recalls were 75, 71, and 100 mg/d for eicosapentaenoic acid, docosapentaenoic acid (DPA), and docosahexaenoic acid, respectively, giving a total of 246 mg/d. This is 30% greater than our previously published estimate of LCn3PUFA intake, the difference being attributable to inaccuracies in pre-existing data on the fatty acid composition of certain foods, particularly the DPA content of meats. We estimate that 43% of the LCn3PUFAs consumed by adults in the NNS95 survey originated from meat, poultry, and game compared with 48% from fish and seafood. Steak and kidney pies and other meat-containing cereal-based products accounted for an additional 4%. Beef and lamb contributed 28% of the total LCn3PUFA intake, whereas pork and poultry contributed 4% and 10%, respectively. Food frequency questionnaires produced similar results.Conclusion: Meat is a major source of LCn3PUFA, particularly DPA, for most Australians. When DPA is included in the definition of LCn3PUFAs, almost half the average adult intake of LCn3PUFA appears to originate from meat sources. (c) 2006 Elsevier Inc. All rights reserved.