Clipping Board » Dangerous Medicinal Tonics ─ Nutrients should be moderate in the body—excessive supplementation only becomes a burden.
【Central News Agency 20060313】
(Central News Agency reporter Chen Qingfang, Atlanta, 13th special report) Many cardiovascular patients regularly take vitamin B6, B12, and folic acid because previous research suggested these are beneficial for cardiovascular health. However, a five-year study involving over 5,000 participants now indicates that these nutrients do not prevent cardiovascular diseases.
At the 55th Annual Conference of the American Heart Association, researcher Long presented findings from the "Heart Outcomes Prevention Evaluation (HOPE 2)" study over the past two days, which overturns previous notions about dietary prevention of heart disease.
The study involved patients aged 55 and older with chronic stable cardiovascular disease. The experimental group took 2.5 mg of folic acid, 1 mg of vitamin B12, and 50 mg of B6 daily, while the control group received a placebo.
After five years, there was no significant difference in the rates of heart disease, cardiovascular death, and stroke between the two groups.
The study found that after two years, the concentration of homocysteine in the blood of the experimental group decreased, a phenomenon not observed in the control group. However, both groups had comparable risks of heart disease.
Previous related studies suggested that high levels of homocysteine in the blood are associated with the occurrence of cardiovascular diseases, and that folic acid, vitamin B6, and B12 can promote the conversion of homocysteine into methionine and cysteine, which are then excreted from the body through urine, thereby reducing the risk of heart disease.
Consequently, many high-risk patients have been taking high doses of B vitamins and switching to breakfast cereals fortified with folic acid. However, this study suggests that these nutritional supplements do not offer preventive benefits for patients with chronic stable cardiovascular disease.
Source: http://tw. news. yahoo. com/ 060314/ 43/ 2xpws. html
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Study Shows Folic Acid (Vitamin B) Does Not Prevent Cardiovascular Disease
(Central News Agency reporter Chen Qingfang, Atlanta, 13th special report) Many cardiovascular patients regularly take vitamin B6, B12, and folic acid because previous research suggested these are beneficial for cardiovascular health. However, a five-year study involving over 5,000 participants now indicates that these nutrients do not prevent cardiovascular diseases.
At the 55th Annual Conference of the American Heart Association, researcher Long presented findings from the "Heart Outcomes Prevention Evaluation (HOPE 2)" study over the past two days, which overturns previous notions about dietary prevention of heart disease.
The study involved patients aged 55 and older with chronic stable cardiovascular disease. The experimental group took 2.5 mg of folic acid, 1 mg of vitamin B12, and 50 mg of B6 daily, while the control group received a placebo.
After five years, there was no significant difference in the rates of heart disease, cardiovascular death, and stroke between the two groups.
The study found that after two years, the concentration of homocysteine in the blood of the experimental group decreased, a phenomenon not observed in the control group. However, both groups had comparable risks of heart disease.
Previous related studies suggested that high levels of homocysteine in the blood are associated with the occurrence of cardiovascular diseases, and that folic acid, vitamin B6, and B12 can promote the conversion of homocysteine into methionine and cysteine, which are then excreted from the body through urine, thereby reducing the risk of heart disease.
Consequently, many high-risk patients have been taking high doses of B vitamins and switching to breakfast cereals fortified with folic acid. However, this study suggests that these nutritional supplements do not offer preventive benefits for patients with chronic stable cardiovascular disease.
Source: http://tw. news. yahoo. com/ 060314/ 43/ 2xpws. html