GENETIC INFLUENCES ON DAILY INTAKE AND MEAL PATTERNS OF HUMANS
GENETIC INFLUENCES ON DAILY INTAKE AND MEAL PATTERNS OF HUMANS
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DOI：
10.1016/0031-9384(93)90188-l
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发表时间：
1993-04-01
影响因子：
2.9
通讯作者：
DECASTRO, JM
中科院分区：
文献类型：
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作者：
DECASTRO, JM
研究了109对同卵双生子和86对异卵双生子营养素摄入量的遗传性。遗传力的经典分析和线性结构模型显示显着的加性遗传影响的身体大小，身高和体重，和身体肥胖（体重指数）。还发现每日摄入的食物能量的量，以及其常量营养素，酒精和水的含量具有显着的遗传力。线性结构模型分析表明，65%的能量摄入的方差是由于遗传。此外，摄入模式，膳食频率，大小，膳食常量营养素，酒精和水的组成，也被发现有很强的遗传力。线性结构模型表明，44%的膳食频率和65%的膳食量的方差是由于遗传。然而，共享的家庭环境对成年后的摄入水平或模式没有显着影响。这些结果表明，在自然环境中，不仅身体大小，而且人类摄入的营养素的模式和数量都受到直接环境和遗传的强烈影响，但根本不受家庭环境的影响。
The heritability of nutrient intake was investigated with 109 identical and 86 fraternal adult twin pairs who were paid to maintain 7-day food intake diaries. Both classical analysis of heritability and linear structural modeling revealed significant additive genetic influences on body size, height and weight, and body fatness (body-mass index). Significant heritabilities were also found for the amount of food energy ingested daily, as well as its macronutrient, alcohol, and water content. Linear structural modeling analysis showed that 65% of the variance in energy intake was attributable to heredity. In addition, the pattern of intake, meal frequency, size, and meal macronutrient, alcohol, and water composition, were also found to have strong heritabilities. Linear structural modeling indicated that 44% of the variance in meal frequency and 65% of the variance in meal size was attributable to heredity. However, shared, familial environment had no significant impact on the levels or pattern of intake in adulthood. These results indicate that not only body size but also the pattern and amounts of nutrients ingested by humans in natural environments are strongly influenced by the immediate environment and heredity, but not at all by the familial environment.