从维基图表上看，最为严重的地区包括非洲，南美，都是不吃大米的。

另外一点

黄金大米还处于生物药理验证阶段，开始人体验证的地方屈指可数，怎么就可以堂而皇之公开试吃了？
从世界范围看，中国的维他命A缺乏症并不严重，处于中等水平。既然大多数发达国家（包括日本韩国台湾这些以大米为主食的）都还没开始或者没完成金大米的无害验证，为什么急着要在中国推广？而众所周知中国政府所谓的检验程序根本不可信（三鹿奶粉就是优质免检产品)

Initial analyses of the potential nutritional benefits of golden rice suggested consumption of golden rice would not eliminate the problems of vitamin A deficiency, but should be seen as a complement to other methods of vitamin A supplementation.[22][23] Since then, improved strains of golden rice have been developed containing sufficient provitamin A to provide the entire dietary requirement of this nutrient to people who eat about 75g of golden rice per day.[4]

In particular, since carotenes are hydrophobic, there needs to be a sufficient amount of fat present in the diet for golden rice (or most other vitamin A supplements) to be able to alleviate vitamin A deficiency. In that respect, it is significant that vitamin A deficiency is rarely an isolated phenomenon, but usually coupled to a general lack of a balanced diet (see also Vandana Shiva's arguments below). The RDA levels accepted in developed countries are far in excess of the amounts needed to prevent blindness.[4] Moreover, this claim referred to an early cultivar of golden rice; one bowl of the latest version provides 60% of RDA for healthy children.[24]

http://en.wikipedia.org/wiki/Golden_rice

我给你抽屉一下哈

第一：金大米并不能消除维他命A缺乏症，但不失为一种补充治疗手段
第二：胡萝卜素是非水溶性的，所以需要和一定量的富油食品一起吃才有较好的吸收效果。（死肉按：真相大白啊，原来以为穷人有了金大米就翻身了，结果发现还是要吃肉才能解决问题，有这么忽悠人的吗？）