燕窩的营养价值

As we know bird nest lately is very popular in Malaysia. Many people start to breed and feed the swallow for their bird nest.Pure bird nest price can from RM2,200 per Kg to 4,000 per Kg.
But are we really need bird nest? or Do bird nest really can give us the protein that we want??

I search on internet and this is the result I got from Wikipedia.

燕窝中含有50%的蛋白质，30%的碳水化合物，5%的铁，3%的其他矿物质，以及1.4%的纤维素。燕窝的蛋白质主要是上皮细胞分泌的黏蛋白（换句话也 就是口水），其中它只含有1种必需氨基酸（赖氨酸），3种条件性（某些人群缺乏的）必需氨基酸。 　　而人体需要8种必需氨基酸，13种条件性必需氨基酸，因此，燕窝的蛋白质营养价值极低，这一点已为动物试验证实。给大鼠饲喂燕窝加上另外一种成分单一 的食物，会产生蛋白性营养不良。也就是说，燕窝蛋白质的营养价值在数量，而不在质量上。但通常人们“偶尔为之”的食用量在数量上来说微不足道，因此，燕窝 在蛋白质方面的营养价值，还远远不如各种肉类、大豆等高蛋白食品。 　　碳水化合物对并不缺乏营养的人群来说没有营养学意义，二两燕窝能提供345大卡的热量，相当于二两米糕或者面包，而价格上相差上万倍了。 　　说到铁和矿物质的含量，燕窝的确算是佼佼者。但燕窝尤其是血燕中的矿物，是来自自然矿物的渗透或者是燕子筑巢中带入的杂质，这些矿物是无机物，人体对 它们吸收甚少或者根本就不会吸收，因此其营养价值可以忽略不计。 　　最后一项有营养意义的成分是纤维素，这一成分含量平常，吃一个苹果就抵得上4两燕窝中所含纤维素了。 　　总而言之，燕窝成分功能单一，不像我们所吃的其他食物，大部分是全细胞性食物，富含有机生命需要的各种原料，从营养学价值上来说，燕窝只是一种低级食 品，营养有限。

Actually, I am not really support people breed the swallow, because when we breed them of course their quantity will grow rapidly. When the quantity of swallow increased, their food will decrease. This will destroyed the environment cycle.

Another reason I not support in swallow breeding is because we didn't really know does the swallow have any disease or not? If swallows bring the disease to us, how we going to defend it because of the quantity amount already growing huge?

Do produce bird nest = safe and high profit??
Maybe now it is.... but how about future and how about the Earth??