The New Zealand Railways Magazine, Volume 2, Issue 3 (July 1, 1927)
New Zealand's Greatest Industry. — “Irradiated” Butter
New Zealand's Greatest Industry.
Sir William Arbuthnot Lane, the well-known surgeon and dietist, has put forth a theory which is of particular interest to New Zealand. He believes that foodstuffs grown in the sunny places of the earth, or produced from animals which feed on crops or pastures grown in countries blessed with an abundance of sun-shine-irradiated foodstuffs-possess a higher vitamin content than foodstuffs produced in countries not so favourably placed. Writing recently in “Emigration” he says:—
Australian and New Zealand butter is made from the milk of cows that feed in the open pastures all the year round, and is consequently very rich in Vitamins A and D, which are particularly valuable to us all during the winter months. It is especially good for children, because of its valuable property of stimulating growth and preventing rickets. Generally speaking the butter which comes to England from the Continent during the winter is made from the milk of stall-fed cows, and is deficient in those vitamins which so materially assist the constitution to resist colds and kindred complaints.
This view has just been endorsed by another famous dietist (Professor V. H. Mottram) in the course of a recent broadcast address from London:—
“If you take butter, milk, cheese, eggs and suet,” observed Professor Mottram, “you get Vitamin A, and, most probably, Vitamin D. It is better to make sure of the latter, at any rate for children, in the winter by giving them cod liver oil; or you could use New Zealand or Australian butter and dried milk. By taking New Zealand or Australian butter in our winter you are taking what is really summer butter, and I believe the same applies to the dried milk. There is so much more sunlight, more ultra-violet light in the Antipodes, even in winter, than in this benighted country.”
Professor Mottram added that diet should include a “Pan-vitamin” salad consisting of lettuce, endive, watercress, onions or tomatoes, with a dressing-of yolk of hard-boiled egg and cream added to the oil and vinegar. Such a salad, he said, would contain all the Vitamins that we run any risk of missing.