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UK kids lacking vitamin D

A quarter of all toddlers in the UK are lacking Vitamin D, according to research.

Vitamin D supplements are recommended for those people at risk of deficiency, including all pregnant and breastfeeding women, children under five, and the elderly, but 74% of parents know nothing about them and more than half of healthcare professionals are also unaware, the BBC said.

Dr Benjamin Jacobs, consultant paediatrician at the Royal National Orthopaedic Hospital, described the issue as a “major problem”.

He told BBC Breakfast: “We see about one case of rickets a month in our hospital, but that’s the very severe end of the disease.

“There are many other children who have less severe problems – muscle weakness, delay in walking, bone pains – and research indicates that in many parts of the country the majority of children have a low level of Vitamin D.”

He explained that it was discovered that Vitamin D prevents rickets about 100 years ago when most children in London suffered from the disease, and it was later eradicated.

But then, in the 1950s, there was concern that children were getting too much Vitamin D in food supplements and cod liver oil and supplements were stopped. This was unlike in other Western countries where they continued, he said.

Dr Jacobs said: “We thought they were unnecessary, possibly harmful, and that was a major mistake.”

He said parents are largely unaware of the risk of the condition, while health professionals are often taught that rickets is a disease of the past.

“It’s really only over the past 10 years or so that I’ve noticed children with Vitamin D deficiency. and still I would say today, the majority of doctors, health visitors, midwives, nurses, are not aware enough of the problem,” he said.

Asked about how vulnerable people can be given more Vitamin D, Dr Jacobs said current guidelines suggest taking drops or tablets, but experts are also looking into food supplementation.

He said it would not be harmful if people ended up with too much Vitamin D in their diet

Vitamin D

Vitamin D

Current guidelines suggest that children and pregnant women should have 400 units a day, but he described this as a “conservative” level compared to the US, where he said a study suggested pregnant women should have 4,000 units.

“In my view, it is extremely safe,” he added.

Chief medical officer Professor Dame Sally Davies said the Government would be reviewing the issue.


She said: “We know a significant proportion of people in the UK probably have inadequate levels of vitamin D in their blood.

“People at risk of vitamin D deficiency, including pregnant women and children under five, are already advised to take daily supplements.

“Our experts are clear – low levels of vitamin D can increase the risk of poor bone health, including rickets in young children.

“Many health professionals such as midwives, GPs and nurses give advice on supplements, and it is crucial they continue to offer this advice as part of routine consultations and ensure disadvantaged families have access to free vitamin supplements through our Healthy Start scheme.

“It is important to raise awareness of this issue, and I will be contacting health professionals on the need to prescribe and recommend vitamin D supplements to at-risk groups.

“The Department of Health has also asked the Scientific Advisory Committee on Nutrition to review the important issue of current dietary recommendations on vitamin D.”

Milk and iodine

MODERN-DAY food fads are responsible for the rise of the goitre, a deformity that was rife 300 years ago.

The gross swelling of the thyroid gland at the base of the neck is caused by a lack of iodine, a trace element found in seafood, and fruit and vegetables grown in iodine-rich soil.

However large parts of the UK have very little natural iodine and soil levels in a swathe of England from the South-west up to the Peak District are so low that in the past one in three children there developed goitres. It was once so common in the Midlands it was known as “Derbyshire neck”.

In the Forties, iodine intake in the UK diet began to climb, if only by accident. Iodine-based disinfectants were adopted by dairies and traces of the element began to find their way into milk supplies. As a result, today one cup of milk provides half our daily iodine requirement.

Iodine levels in milk have remained constant for at least 30 years but a survey carried out for the British Thyroid Foundation has revealed the deficiency is on the rise again.

More than two-thirds of the 737 teenage girls checked were low in iodine and one in five was dangerously low. Dr Mark Vanderpump who conducted the study says: “There has been no change in the amount of iodine in milk so it must be that we are drinking less of it.”

Milk

Milk

European Union figures confirm between 1991 and 1996 alone milk sales fell by seven per cent.

The study focused on girls approaching child-bearing age because they are the most at risk but there is no reason to believe levels are any better in the wider population.

Dr Vanderpump, a consultant based at the Royal Free Hospital in London, warns: “The significant public health impact of these findings needs to be addressed.”

Iodine deficiency impairs growth and mental development in babies and children. Even a mild deficit can damage an infant’s brain. In fact it is the most common cause of preventable brain damage in the world.

Widespread deficiency is also likely to lead to an increase in goitres. Dr Vanderpump explains: “The thyroid is good at making the most of a limited amount of raw materials and it swells to accommodate the fact there is not enough iodine.”

One in four of us has a thyroid problem and because of its role in regulating the metabolism, symptoms such as tiredness, feeling the cold or becoming forgetful are often vague.

H owever the British Thyroid Foundation, a patient-focused charity, warns it is an area shrouded in mystery. For instance, one website offering “educational information” suggests you can test for deficiency by painting iodine on to your skin and seeing if the substance disappears.

“Nonsense,” says Dr Vanderpump. Blood tests are required for an accurate diagnosis and even then they can be difficult to interpret. “It’s a very subtle biochemical abnormality.”


Kelp and other iodine supplements are as likely to cause thyroid problems as they are to cure them.

The butterfly-shaped thyroid uses iodine to make hormones that regulate how quickly the body uses energy, how sensitive it is to other hormones and aids production of essential proteins.

If this chemical production is too fast it causes hyperthyroidism or overactive thyroid. Symptoms include weight loss, palpitations, rapid pulse, sweating, feeling hot, tiredness, muscle weakness, mood swings, thirst, itching and an enlarged thyroid gland.

Hyperthyroidism can be triggered by the immune system turning on itself, by kelp supplements and by medicines such as lithium which is used to treat mood disorders.

If production is too slow it causes hypothyroidism or underactive thyroid. Symptoms include fertility problems, depression, sluggishness, sensitivity to the cold and dry skin or hair.

Goitre (a thyroid infection) and Graves’ disease (an auto-immune disorder) are common causes of hypothyroidism. Both are treated with drugs to suppress or increase production of thyroid hormones and require expert medical care.