Folic acid richest sources?

Appeared in: NORCET 1 - 2020

Explanation

The term 'folate' originates from the Latin word 'folium,' meaning leaf, which highlights that leafy greens are the primary source.
Dark green vegetables like spinach, broccoli, and lettuce contain the highest concentrations of naturally occurring folate (Vitamin B9).
Folic acid is essential for DNA synthesis, cell growth, and the formation of red blood cells, making it a critical nutrient.
Its role in preventing neural tube defects makes it a key supplement during pregnancy.

Option A: Milk is a poor source of folic acid. Goat's milk is particularly deficient and can cause anemia in infants if it's their sole source of nutrition.
Option B: While organ meats like liver are rich in folate, general muscle meat is not the richest source compared to leafy greens.
Option D: Bananas contain various nutrients, including potassium and Vitamin B6, but they are not considered a rich source of folic acid.

Visual 1: Infographic - A chart displaying various food groups and their folic acid content per serving, with green leafy vegetables shown at the top.
Visual 2: Diagram - An illustration showing the impact of folic acid deficiency on fetal development, specifically highlighting the formation of the neural tube.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Dietary sources of Folic Acid (Vitamin B9) as background academic context rather than a clinical decision trigger.
A primary nursing role is educating women of childbearing age about the importance of folic acid supplementation (at least 400 mcg/day) before and during early pregnancy to prevent neural tube defects like spina bifida.
Nurses should assess the dietary habits of patients, especially pregnant women, alcohol-dependent individuals, and those with malabsorption disorders, as they are at higher risk for folate deficiency.
What if? If a pregnant patient has a history of a child with a neural tube defect, the recommended dose of folic acid is significantly higher (typically 4,000 mcg/day), and the nurse must ensure the patient understands and adheres to this higher dosage under medical supervision.

How to Approach the Question

First, identify the core of the question, which is to find the 'richest source' of folic acid.
Recall or use etymology as a mnemonic: 'Folate' comes from 'folium' (leaf), strongly suggesting leafy vegetables.
Evaluate each food option based on its known nutritional profile regarding Vitamin B9.
Compare the options. While some foods like liver (meat) are high in folate, green leafy vegetables as a category are recognized as the most abundant and common source.
Select 'Green leafy vegetables' as it is the most accurate and widely accepted answer.

Concept Tested & Keywords

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Practise the full NORCET 1 - 2020

Attempt every question from this paper in a timed mock, then review the full solution for each one.