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More folic acid for everyone, now
G P Oakley1, M J Adams, C M Dickinson
1Division of Birth Defects and Developmental Disabilities, National Center for Environmental Health,Centers for Disease Control and Prevention, Atlanta, GA 30341-3724, USA.
The Journal of Nutrition
|March 1, 1996
Summary
Increasing folic acid (FA) intake through food fortification is crucial for preventing birth defects like spina bifida and cardiovascular disease. Higher fortification levels are recommended for maximum public health benefits.
Area of Science:
- Public Health Nutrition
- Nutritional Epidemiology
- Preventive Medicine
Background:
- Low folic acid (FA) intake increases risks for functional folate deficiency, linked to spina bifida, anencephaly, and cardiovascular disease.
- A significant portion of the population (75%) has suboptimal FA consumption, necessitating public health interventions.
- Current FA supplement intake is around 0.4 mg, which is insufficient for widespread prevention.
Purpose of the Study:
- To address the critical public health issue of increasing folic acid consumption dramatically.
- To evaluate the efficacy of food fortification as the primary strategy for enhancing folate intake.
- To determine optimal fortification levels for preventing major health issues.
Main Methods:
- Analysis of existing research on folate deficiency and its health consequences.
- Evaluation of food fortification as a policy intervention for increasing folic acid intake.
- Assessment of proposed Food and Drug Administration (FDA) fortification levels versus higher recommended levels.
Main Results:
- Food fortification is identified as the most effective method for increasing population-wide folic acid consumption.
- A higher fortification level (2.5 times the FDA proposal) could prevent approximately 1000 neural tube defects annually.
- Elevated folic acid intake is not shown to be harmful, with potential to prevent up to 50,000 premature deaths from coronary disease yearly.
Conclusions:
- Urgent implementation of cereal-grain fortification with folic acid is recommended.
- Higher fortification levels are necessary to achieve substantial public health gains.
- Public education on folate-rich foods and supplements, alongside fortification, is vital. Vitamin B-12 co-administration is a policy option if harm is a concern.