§ Mr. Parkerasked the Parliamentary Secretary to the Ministry of Food whether he will arrange extra rations of vitamin A for miners, lorry-drivers, and others working in darkness, in view of the fact that vitamin A is essential for vision in the dark and that Durham miners free from nystagmus were eating 13 ounces of butter per week on an average before the war, and that the joint ration of butter and margarine is now only 6 ounces a week?
§ Mr. BoothbyI am unable to accept my hon. Friend's suggestion that an extra ration of butter and margarine for these workers is necessary, particularly in view of the valuable sources of vitamin A, such as carrots and green leafy vegetables, which are readily available. I would remind my hon. Friend that the two-ounce ration of cooking fat may be taken in the form of magarine in addition to the joint butter and magarine ration of 6 ounces.