Voeding rijk aan foliumzuur goed tegen
hart- en vaatziektes.*
Uit een Engelse analyse van verschillende studies blijkt dat foliumzuur de hoeveelheid homocysteïne duidelijk kan verminderen. Ook bij mensen met een genetsche afwijking waardoor zij van nature een verhoogde homocysteïnewaarde hebben. Teveel van het aminozuur homocysteïne doet de kans op hart- en vaatziektes aanmerkelijk toenemen.
Voeding rijk aan de B vitamine foliumzuur is o.a. groene bladgroenten, bonen, kolen, noten, zaden, volkoren granen, lever, gevogelte en citrusfruit.
Folic
Acid Can Lower Heart Disease And Stroke Risk
If
you take folic acid supplements you could be reducing your chances of developing
heart disease or stroke, say researchers from the Wolfson Institute for
Preventive Medicine, and the Barts & The London Queen Mary's School of
Medicine and Dentistry, UK.
The researchers looked at earlier studies and found that folic acid reduces
levels of homocysteine, which lowers a person's chances of developing heart
disease. Homocysteine is an amino acid in the blood. Studies have shown that too
much homocysteine in the blood is linked to a higher risk of cardiovascular
disease, stroke and preripheral vascular disease.
Dr Wald, team leader, from the Queen Mary's School of Medicine and Dentistry,
said "Folic acid is a much undervalued vitamin. Not only does it prevent
the serious birth defect spina bifida, but the evidence that it can reduce the
risk of heart attack and stroke is becoming increasingly persuasive".
The team also looked at studies of patients with a genetic mutation which
affects about 10% of people. These people have higher than normal levels of
homocysteine. They wanted to find out whether folic acid consumption altered
their levels of homocysteine. They found that the consumption of folic acid
brought their levels of homocysteine down to normal.
Dr. Wald said that all the evidence they looked through, put together, is
compelling - that folic acid does reduce the risk of heart disease and strokes.
Rich Dietary Sources of Folic Acid
-- Dark green, leafy vegetables
-- Fortified breakfast cereals, enriched grain products
-- Liver, other organ meats
-- Lightly cooked beans, peas (too much cooking will destroy the folate content)
-- Nuts, seeds
-- Oranges, grapefruits
-- Sprouts
-- Poultry
-- Whole wheat bread
"Folic acid, homocysteine, and cardiovascular disease: judging causality
in the face of inconclusive trial evidence"
David S Wald, Nicholas J Wald, Joan K Morris
BMJ 2006;333:1114-1117
doi:10.1136/bmj.39000.486701.68
Click
here to see analysis and comment (BMJ)
(Dec.
2006)