Adequate intake of folic acid by women during very early pregnancy can markedly reduce risk of the development of neural-tube defects (NTD). The effectiveness of advice to women to take folic acid supplements is limited, mainly because 50 % of pregnancies are unplanned. However, mandatory folic acid food fortification programmes in North America have been very successful in reducing NTD rates. In Ireland higher rates of pregnancies are affected by NTD and the option of termination is illegal. Consequently, the much higher burden of disease makes primary prevention of NTD an important public health issue in Ireland. During 2006 a decision was taken in Ireland to initiate mandatory folic acid fortification of most bread to prevent NTD. Priority work was immediately undertaken to establish reliable and comprehensive baseline information on factors that will be affected by fortification. This information included data on: the national prevalence of pregnancies affected by NTD; the current extent of voluntary folic acid fortification of food on the Irish market and how it affects folic acid intakes; blood folate status indicators assessed for various subgroups of the Irish population. In addition, scientific developments that have arisen since 2006 relating to the risks and benefits of folic acid intake are under ongoing review. The present paper summarises the rationale for mandatory folic acid food fortification in Ireland and recent scientific developments relating to risks and benefits of folic acid intake. In this context, preliminary findings of baseline monitoring investigations in Ireland are considered.

Objective: To evaluate Ireland's food-based dietary guidelines and highlight priorities for revision. Design: Evaluation with stakeholder input. Energy and nutrient intake goals most appropriate for Ireland were determined. Advice from Ireland's food guide was translated into 4 d food intake patterns representing age and gender groups from 5 to 511 years. Nutritional content of the food patterns was compared with identified goals and appropriateness of food advice was noted. Feedback from stakeholders was obtained on portion size of foods within the Bread, Cereal and Potato group and of portion descriptors for meat and cereal foods. Setting: Government agency/community. Subjects: General population aged 51 years, dietitians/nutritionists (n 44) and 1011 consumers. Results: Goals were identified for energy, macronutrients, fibre, Fe, Ca and vitamin D. Goals not achieved by the food patterns included energy, total fat, saturated fat, fibre and vitamin D. Energy content of food portions within the Bread, Cereal and Potato group varied widely, yet advice indicated they were equivalent. Dietitians/nutritionists agreed with the majority of consumers surveyed (74 %, n 745) that larger portion sizes within the Bread, Cereal and Potato group were more meaningful. 'Palm of hand' as a descriptor for meat portions and a '200 ml disposable cup' for quantifying cereal foods were preferred. Conclusions: Revision of the guidelines requires specific guidance on energy and vitamin D intakes, and comprehensive advice on how to reduce fat and saturated fat and increase fibre intakes. Advice should use portion descriptors favoured by consumers and enlarged portion sizes for breads, cereals and potatoes that are equivalent in terms of energy.

Objective: To revise the food-based dietary guidelines for Ireland and assess the affordability of healthy eating. Design: An iterative process was used to develop 4 d food intake patterns (n 22) until average intakes met a range of nutrient and energy goals (at moderate and sedentary activity levels) that represented the variable nutritional requirements of all in the population aged 5 years and older. Dietary guidelines were formulated describing the amounts and types of foods that made up these intake patterns. Foods required for healthy eating by typical households in Ireland were priced and affordability assessed as a proportion of relevant weekly social welfare allowances. Setting: Government agency/community. Subjects: General population aged 51 years. Results: Food patterns developed achieved energy and nutrient goals with the exception of dietary fibre (inadequate for adults with energy requirements ,9?2 MJ) and vitamin D (inadequate for everyone). A new food group to guide on fats/oils intake was developed. Servings within the Bread, Cereal and Potato group were sub-categorized on the basis of energy content. Recommendations on numbers of servings from each food group were developed to guide on energy and nutrient requirements. Healthy eating is least affordable for families with children who are dependent on social welfare. Conclusion: Daily supplementation with vitamin D is recommended. Wholemeal breads and cereals are recommended as the best source of energy and fibre. Lowfat dairy products and reduced-fat unsaturated spreads are prioritized to achieve saturated fat and energy goals. Interventions are required to ensure that healthy eating is affordable.

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