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Lemons and limeys: The man who helped to cure scurvy James Lind: The man who helped to cure scurvy with lemons
(21 days later)
James Lind is remembered as the man who helped to conquer a killer disease. His reported experiment on board a naval ship in 1747 showed that oranges and lemons were a cure for scurvy. But why did the Royal Navy, which celebrates the tercentenary of Lind's birth on 4 October 2016, take nearly half a century to act on his findings?James Lind is remembered as the man who helped to conquer a killer disease. His reported experiment on board a naval ship in 1747 showed that oranges and lemons were a cure for scurvy. But why did the Royal Navy, which celebrates the tercentenary of Lind's birth on 4 October 2016, take nearly half a century to act on his findings?
For 18th Century sailors, disease during long sea voyages was often more dangerous than enemy action.For 18th Century sailors, disease during long sea voyages was often more dangerous than enemy action.
One British expedition to raid Spanish holdings in the Pacific Ocean in the 1740s lost 1,300 of an original complement of 2,000 men to illness.One British expedition to raid Spanish holdings in the Pacific Ocean in the 1740s lost 1,300 of an original complement of 2,000 men to illness.
The commander, George Anson, said "almost the whole crew" was afflicted by symptoms including a "luxuriancy of funguous flesh... putrid gums and... the most dreadful terrors".The commander, George Anson, said "almost the whole crew" was afflicted by symptoms including a "luxuriancy of funguous flesh... putrid gums and... the most dreadful terrors".
Many sailors suffered "a strange dejection of the spirits" and lay immobile, while others who "resolved to get out of their hammocks, have died before they could well reach the deck".Many sailors suffered "a strange dejection of the spirits" and lay immobile, while others who "resolved to get out of their hammocks, have died before they could well reach the deck".
Frequent outbreaks of disease tormented crews and various cures were championed.Frequent outbreaks of disease tormented crews and various cures were championed.
The explorer Captain Cook recommended malt and sauerkraut, while others swore by "elixir of vitriol" (a dilute solution of sulphuric acid), blood-letting and applying a piece of turf to the patient's mouth to counter the "bad qualities of the sea-air".The explorer Captain Cook recommended malt and sauerkraut, while others swore by "elixir of vitriol" (a dilute solution of sulphuric acid), blood-letting and applying a piece of turf to the patient's mouth to counter the "bad qualities of the sea-air".
Among the array of imaginative remedies were some that proved effective.Among the array of imaginative remedies were some that proved effective.
Sailors who ate the ship's rats were inadvertently protecting themselves - as the animal synthesizes its own vitamin C.Sailors who ate the ship's rats were inadvertently protecting themselves - as the animal synthesizes its own vitamin C.
Citrus fruit - another source of vitamin C - had already been suggested as a cure by some.Citrus fruit - another source of vitamin C - had already been suggested as a cure by some.
The explorer Sir Richard Hawkins recorded in 1622 that "sower lemons and oranges" were "most fruitful... I wish that some learned man would write of it".The explorer Sir Richard Hawkins recorded in 1622 that "sower lemons and oranges" were "most fruitful... I wish that some learned man would write of it".
More than a century later, a learned man fulfilled that wish, with a text which earned him a place in scientific history.More than a century later, a learned man fulfilled that wish, with a text which earned him a place in scientific history.
James Lind was the son of an Edinburgh merchant and became a medical apprentice in the city before joining the Royal Navy as a surgeon's mate in the late 1730s.James Lind was the son of an Edinburgh merchant and became a medical apprentice in the city before joining the Royal Navy as a surgeon's mate in the late 1730s.
His service allowed him to observe the effects of scurvy at first hand.His service allowed him to observe the effects of scurvy at first hand.
In 1747, on board HMS Salisbury, he carried out one of the first controlled clinical trials recorded in medical science.In 1747, on board HMS Salisbury, he carried out one of the first controlled clinical trials recorded in medical science.
He took 12 men suffering from similar symptoms of scurvy, divided them into six pairs and treated them with remedies suggested by previous writers:He took 12 men suffering from similar symptoms of scurvy, divided them into six pairs and treated them with remedies suggested by previous writers:
By the end of the week, those on citrus fruits were well enough to nurse the others.By the end of the week, those on citrus fruits were well enough to nurse the others.
Dr Lind's "Treatise of the Scurvy", containing a celebrated review of literature on the disease, appeared in 1753, by which time he was a practising physician in Edinburgh.Dr Lind's "Treatise of the Scurvy", containing a celebrated review of literature on the disease, appeared in 1753, by which time he was a practising physician in Edinburgh.
He prided himself that he had conquered a condition which "during the last war, proved a more destructive enemy, and cut off more valuable lives, than the united efforts of the French and Spanish arms".He prided himself that he had conquered a condition which "during the last war, proved a more destructive enemy, and cut off more valuable lives, than the united efforts of the French and Spanish arms".
But it was not until 42 years later that the Admiralty first issued an order for the distribution of lemon juice to sailors. Historians still debate why it did not act upon Dr Lind's discovery earlier.But it was not until 42 years later that the Admiralty first issued an order for the distribution of lemon juice to sailors. Historians still debate why it did not act upon Dr Lind's discovery earlier.
What is scurvy?What is scurvy?
(Source: British Dietetic Association)(Source: British Dietetic Association)
Jane Wickenden, from the Institute of Naval Medicine, said she believed it was partly because Dr Lind's treatise drew no clear conclusions.Jane Wickenden, from the Institute of Naval Medicine, said she believed it was partly because Dr Lind's treatise drew no clear conclusions.
She said: "The account of the experiment only takes up four pages. The remaining 450 pages deal with other treatments including fresh air and exercise."She said: "The account of the experiment only takes up four pages. The remaining 450 pages deal with other treatments including fresh air and exercise."
Adding to the confusion were rival cures, including the malt and "Sour Kroutt" favoured by Captain Cook.Adding to the confusion were rival cures, including the malt and "Sour Kroutt" favoured by Captain Cook.
Ms Wickenden added: "Captain Cook was the self-publicist that Lind wasn't. He had travelled around the world and had the ear of the Admiralty."Ms Wickenden added: "Captain Cook was the self-publicist that Lind wasn't. He had travelled around the world and had the ear of the Admiralty."
But the treatise was widely circulated. Following publication of the first edition, Dr Lind was appointed to the position of Chief Physician to the Royal Hospital at Haslar in Hampshire.But the treatise was widely circulated. Following publication of the first edition, Dr Lind was appointed to the position of Chief Physician to the Royal Hospital at Haslar in Hampshire.
Further editions followed as well as French and German translations.Further editions followed as well as French and German translations.
In 1795, the year after Dr Lind's death, the Admiralty finally took advice from its own medical staff and made the issue of lemon juice compulsory on ships.In 1795, the year after Dr Lind's death, the Admiralty finally took advice from its own medical staff and made the issue of lemon juice compulsory on ships.
Yet, despite the Navy's efforts, outbreaks of scurvy continued to affect seafarers.Yet, despite the Navy's efforts, outbreaks of scurvy continued to affect seafarers.
Ms Wickenden said: "They didn't appreciate that the power of lemons to counteract scurvy deteriorated with storage and also with some of the preservation methods used, like boiling the juice, which destroys the vitamin C."Ms Wickenden said: "They didn't appreciate that the power of lemons to counteract scurvy deteriorated with storage and also with some of the preservation methods used, like boiling the juice, which destroys the vitamin C."
Dr Lind's suggestion that the power of lemons lay in their acidity led the Admiralty to try cheaper limes from a new British plantation in the Caribbean in the 1860s.Dr Lind's suggestion that the power of lemons lay in their acidity led the Admiralty to try cheaper limes from a new British plantation in the Caribbean in the 1860s.
The fruit, containing about half the vitamin C content of lemons, was less effective in preventing scurvy among British sailors, or 'Limeys' as they became known.The fruit, containing about half the vitamin C content of lemons, was less effective in preventing scurvy among British sailors, or 'Limeys' as they became known.
Not until vitamin C was identified in 1928 was the disease effectively conquered at source.Not until vitamin C was identified in 1928 was the disease effectively conquered at source.
However, in the Royal Navy, Dr Lind is remembered as a hero.However, in the Royal Navy, Dr Lind is remembered as a hero.
Ms Wickenden said: "Lind conducted what is largely regarded as the first clinical trial and is seen as the father of naval medicine."Ms Wickenden said: "Lind conducted what is largely regarded as the first clinical trial and is seen as the father of naval medicine."
A lemon tree now adorns the official crest of the Institute of Naval Medicine, which is based near the former Royal Hospital Haslar where he worked.A lemon tree now adorns the official crest of the Institute of Naval Medicine, which is based near the former Royal Hospital Haslar where he worked.