ISSA Nutritionist Practice Exam

Which nutrient is commonly deficient in people's diets?

1. Fiber

2. Vitamin C

3. Magnesium

4. Vitamin D

The correct answer is: Magnesium

Magnesium is commonly deficient in many people's diets due to several factors. First, magnesium is found in a variety of foods, including leafy green vegetables, nuts, seeds, and whole grains. However, the modern diet often includes processed foods that lack these rich sources. Additionally, certain factors such as higher levels of physical activity, chronic stress, and certain medical conditions can increase magnesium requirements, leading to a higher risk of deficiency. Moreover, dietary surveys and studies frequently reveal that many populations do not meet the recommended daily intake of magnesium, especially among those who consume diets low in whole, unprocessed foods. As a result, magnesium deficiency can lead to various health issues, including muscle cramps, fatigue, and even more serious conditions if left unaddressed. In contrast, while fiber, vitamin C, and vitamin D can also be deficient in certain populations, they are often less consistently noted as widespread deficiencies when compared to magnesium. Increasing awareness about the nutritional value of foods rich in magnesium and encouraging a balanced diet can help in mitigating this common dietary deficiency.