Vegetables high in vitamin B
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Leafy Vegetables High in Vitamin B Complex
Leafy vegetables are notable sources of several B vitamins. Thankuni leaves have particularly high levels of vitamin B1 (0.19 mg/100g) and B2 (0.25 mg/100g), while coriander leaves are rich in vitamin B3 (0.59 mg/100g) . Spinach beet stands out for its vitamin B6 content (0.127 mg/100g) among leafy vegetables . Vine spinach (Basella alba) is also highlighted for its high vitamin B2 content (up to 174.16 mg/100g in some studies) . These findings show that including a variety of leafy greens in the diet can help meet daily vitamin B requirements 159.
Non-Leafy and Root Vegetables with Vitamin B
Non-leafy vegetables such as carrots, bitter gourd, pointed gourd, green chili, and pumpkin also provide B vitamins, though the levels vary. Carrots are especially high in vitamin B6 (0.73 mg/100g) . Other non-leafy vegetables like bitter gourd, pointed gourd, green chili, and pumpkin contain measurable amounts of B2, B3, B5, and B6, making them valuable for dietary intake of these vitamins . Root vegetables in general contribute to the vitamin B complex, though the specific content can differ widely among types .
Vitamin B3 (Niacin) in Vegetables
Vegetables are a significant source of vitamin B3, especially in the form of nicotinic acid. Studies show that vegetables can have up to 98% nicotinic acid content, making them a strong dietary source of this vitamin . The actual amount of vitamin B3 in vegetables ranges from 459 to 3497 µg/100g, with bioaccessibility (the amount the body can absorb) varying between 33.9% and 40% . This means that while vegetables are rich in B3, not all of it is available for absorption by the body 34.
Effects of Processing on Vitamin B Content
Processing methods like boiling, frying, freezing, and canning can affect the vitamin B content in vegetables. Quick-freezing and canning generally retain significant percentages of vitamins B1 and B2, though some loss occurs, especially with longer blanching periods . Parboiling tends to reduce the content of B5 and B6 in most vegetables, sometimes dramatically . However, some thermal processing can increase the bioaccessibility of certain B vitamins, making them easier for the body to absorb 510.
Bioaccessibility and Dietary Recommendations
The bioaccessibility of B vitamins from vegetables is generally moderate, with B1 and B2 averaging around 64–69% and B3 forms ranging from 34–40% . Despite some losses during cooking or processing, the levels of B vitamins in both fresh and processed vegetables are often sufficient to meet the recommended dietary allowances for children and adults . Including a variety of both leafy and non-leafy vegetables in the diet is an effective way to ensure adequate intake of the vitamin B complex 125.
Conclusion
Vegetables, especially leafy greens like Thankuni, coriander, spinach beet, and vine spinach, are excellent sources of several B vitamins, including B1, B2, B3, B5, and B6. Non-leafy and root vegetables also contribute valuable amounts. While processing can reduce some vitamin B content, vegetables remain a key dietary source, and their inclusion in daily meals supports overall nutritional health.
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Most relevant research papers on this topic
Estimation of Water-Soluble Vitamin B-Complex in Selected Leafy and Non-Leafy Vegetables by HPLC Method
Using HPLC method, this study reveals varied levels of water-soluble vitamin B complex in Bangladeshi leafy and non-leafy vegetables, aiding in dietary intake calculations and nutritional surveys.
Quantitative analysis of vitamins B2, B3, B5 and B6 by HPLC-UV in selected non-leafy vegetables
HPLC-UV analysis accurately quantifies vitamin B2, B3, B5, and B6 content in non-leafy vegetables like bitter gourd, pointed gourd, green chili, and pumpkin, aiding in value addition and calculating dietary intake.
In Vitro Bioaccessibility of the Vitamin B Series from Thermally Processed Leafy African Indigenous Vegetables
Thermal processing of leafy African indigenous vegetables affects vitamin B series levels, but in vitro digestion increases bioaccessibility, supporting a nutritional approach to combat vitamin B series deficiency.
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