Dietary sources of vitamin B6
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Main Dietary Sources of Vitamin B6
Vitamin B6 is found in a variety of foods, but the main dietary sources are meat and meat products. Studies in Spain have shown that meat and meat products are the leading contributors to vitamin B6 intake in the general population, followed by other animal-based foods. In contrast, milk and dairy products are not significant sources of vitamin B6, though they are important for other B vitamins like riboflavin .
Plant-Based Sources and Bioavailability
Plant foods also contain vitamin B6, but the bioavailability of vitamin B6 from plant sources may be lower than from animal sources. Despite this, research indicates that vegetarians, pescatarians, and flexitarians generally maintain adequate vitamin B6 status, suggesting that a well-planned vegetarian diet can provide sufficient vitamin B6. The use of vitamin B6 supplements is a strong predictor of vitamin B6 status, but dietary intake from both plant and animal sources remains important .
Vitamin B6 Intake in Different Populations
Most people in developed countries meet the recommended intake of vitamin B6 through their normal diet, especially when their diet includes sufficient protein, as vitamin B6 requirements are often calculated relative to protein intake. However, certain groups, such as pregnant and lactating women, may require higher intakes. The recommended daily intake for adults generally ranges from 1.5 to 2.2 mg per day, with higher needs during pregnancy and lactation 45.
Health Implications of Dietary Vitamin B6
A diet high in vitamin B6 is associated with health benefits, such as a lower risk of glaucoma in adults. This suggests that ensuring adequate intake of vitamin B6 from dietary sources could be a preventative strategy for certain health conditions .
Conclusion
Meat and meat products are the primary dietary sources of vitamin B6, but plant-based foods can also contribute, especially in vegetarian diets. Most people can meet their vitamin B6 needs through a balanced diet, but some groups may require more. Maintaining adequate vitamin B6 intake is important for overall health and may help reduce the risk of certain diseases.
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