脂肪組織遍布全身，如大腿，腹部，手臂，圍繞著各個內臟等。當中，腹部脂肪是一個非常危險的脂肪。許多科學期刊已經指出過，腹部脂肪與一些代謝性疾病有著密切的關係。此外，根據一項二零一二年的流行病學研究，原來中央肥胖於不同年齡有不同普遍程度。由十八歲至六十歲來說，男性中央肥胖的變化相對穩定，大約三十個巴仙；至於女性中央肥胖的變化則較急劇，從十八歲的二十個巴仙到六十歲時的超過六十個巴仙。由此，你會發現年齡對女性的脂肪分佈產生的影響較大。而罪魁禍首正是更年期的荷爾蒙變化。

在更年期，女性的卵巢停止分泌一些重要的女性荷爾蒙，如雌激素和孕激素。更年期時，雌激素的不足可能產生的後果包括代謝綜合症﹑異常的血脂水平﹑降低糖耐量﹑血壓上升等等。隨著科學家們知道更多有關缺乏雌激素的問題，使用人工雌激素和/或孕激素的荷爾蒙替代治療開始被廣泛使用，但有不同副作用。隨後，“大豆雌激素”一詞引起熱議至今。

“大豆雌激素”是一種存在於大豆中的植物化學物。他們被統稱為“異黃酮”。異黃酮具有類似人類雌激素的效果，但於人體內效果弱數千倍。然而，其在血液中的水平，也可以比在血液中人類雌激素的水平高數千倍。這表示更年期婦女使用異黃酮預防中央肥胖可能有用。

經過一系列的調查研究，大豆異黃酮與大豆蛋白結合更有益於預防更年期婦女的中央肥胖。根據一些研究結果，每天服用八十至一百六十毫克異黃酮，以及進食二十五克大豆蛋白，被記錄為一個有效的劑量去預防女性的中央肥胖。很多女士擔心的一件事情是關於進食大豆和乳腺癌的風險。直到今天為止，眾多的研究都已經表明食用大豆似乎並不增加一般女性，甚至乳腺癌倖存者患上乳腺癌的風險。

Adipose tissue is distributed all over the body, such as thigh, abdomen, arms, around internal organs etc, among which, abdominal fat is a very dangerous fat that is associated with a number of metabolic disorders as reported in many scientific journals. Moreover, according to an epidemiological study in 2012, a relatively steady percentage of men, 30%, suffers from abdominal obesity at different life stages, when compared to the dramatic change of the percentages of women, from 20% to over 60% at the ages from 18 to over 60. Thus, you may observe that the age have a greater impact on the fat distribution of women. The top culprit is the hormonal change during menopause.

In menopause, the ovaries of women stop producing estrogen and progesterone, important female hormones. The possible consequences of estrogen deficiency during menopause include metabolic syndrome, abnormal plasma lipids, reduced glucose tolerance, increased blood pressure, you name it. As the scientists found out more about the drawbacks of estrogen deficiency, hormonal replacement by artificial estrogen and/or progesterone was developed, though many side effects were seen afterwards. Then, a term called ‘soy estrogen’ came up to hot discussion until now.

‘Soy estrogen’ is a group of plant chemicals found in soy. Their collective name is ‘isoflavones’. Isoflavones has similar effects but thousands times less potent, relative to human estrogen. However, its level in blood can also be thousands times higher than human estrogen level in blood. This suggests the use of the isoflavones on the prevention of abdominal obesity among menopausal women.

After a series of research studies, isoflavones benefit menopausal women the most in combination with soy proteins. In accordance to the study results, taking together with 25g soy protein a day, 80-160mg per day are documented to be an effective dosage for abdominal obesity prevention of women. One thing that many ladies worry about is concerning the risk of breast cancer and soy consumption. The numerous studies have been conducted til now have already indicated that soy consumption does not seems to increase the risk of breast cancer in general women and even breast cancer survivors.



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