Dry Fruits: Nutritional Composition, Health Benefits and Dietary Importance

Dry Fruits: Nutritional Composition, Health Benefits and Dietary Importance

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  VEGETABLES AND FRUITS: DRY FRUITS AktarafunZannat Assistant Professor (Food and Nutrition) Govt. College of Applied Human Science, Dhaka
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  Introduction Dry fruits arefruits from which the water content has been removed, either naturally by sun drying (e.g., raisins, figs, apricots, dates) or artificially through dehydration methods. In common usage, the term “dry fruits” also includes nuts and oilseeds (e.g., almonds, walnuts, cashews, pistachios, peanuts), even though botanically they are different. Because of the drying process, nutrients in these foods become concentrated, making them dense sources of energy, vitamins, minerals, and protective phytochemicals.
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  Nutritive Value ofDry Fruits Energy Dry fruits are energy-dense foods. Because of reduced water content, they provide much more calories than fresh fruits. Their caloric values usually range from 250–650 kcal per 100 g. • Dried fruits like raisins, dates, and figs are rich in natural sugars (glucose, fructose), which supply quick energy. • Nuts are higher in fats, especially healthy unsaturated fats, which are calorie-rich but beneficial for heart health.
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  Carbohydrates and Fiber •Dried fruits (raisins, dates, figs, apricots) are particularly rich in carbohydrates, mainly in the form of simple sugars. These sugars make them excellent quick energy snacks. • They also provide dietary fiber (both soluble and insoluble), which aids digestion, prevents constipation, and helps regulate blood sugar and cholesterol levels. Proteins • Dried fruits like raisins and dates contain little protein. • Nuts, however, are a good source of plant protein, contributing 15–25 g per 100 g. While they are not “complete proteins,” when eaten with cereals or pulses, they complement the amino acid profile.
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  Fats • True driedfruits are very low in fat. • Nuts and seeds are rich in fat, but the majority are monounsaturated and polyunsaturated fatty acids (MUFA and PUFA), which lower “bad” cholesterol and promote cardiovascular health. Walnuts in particular are rich in omega-3 fatty acids, which are rare in plant foods. Vitamins Dry fruits are valuable sources of vitamins: • Vitamin E is abundant in almonds and peanuts and acts as a strong antioxidant. • Vitamin A (as beta-carotene) is present in dried apricots. • B-complex vitamins, especially niacin and folate, are found in peanuts, dates, and raisins.
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  Minerals Dry fruits aremineral-rich: • Calcium (almonds, figs) supports bone health. • Iron (raisins, dates, figs, cashews) helps prevent anemia. • Potassium (dates, raisins, apricots) regulates blood pressure and fluid balance. • Magnesium, zinc, and selenium in nuts enhance immunity, nerve function, and antioxidant defense. Phytochemicals and Antioxidants • Many dry fruits contain polyphenols, flavonoids, tannins, and resveratrol. • These compounds protect against oxidative stress, aging, and chronic diseases like diabetes, cancer, and cardiovascular disorders.
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  Health Benefits ofDry Fruits • Energy and stamina: Their high calorie and nutrient density makes dry fruits ideal for children, pregnant women, athletes, and convalescents. • Digestive health: Fiber content promotes satiety, eases bowel movement, and fosters healthy gut microbiota. • Heart health: Unsaturated fatty acids, antioxidants, and potassium reduce cholesterol and blood pressure. • Bone health: Calcium, magnesium, and phosphorus strengthen bones and teeth. • Anemia prevention: Iron and folate in raisins, dates, and figs help maintain hemoglobin levels. • Brain function: Walnuts and almonds improve memory and cognition due to omega-3 and vitamin E.
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  Adverse Effects ofExcess Intake of Dry Fruits High calorie content: Overconsumption can cause weight gain. High sugar content: Dried fruits (dates, raisins) are not suitable in excess for diabetics. Allergies: Nuts (especially peanuts, cashews) may cause allergic reactions in sensitive individuals. Digestive discomfort: Excess intake may cause bloating or diarrhea due to concentrated fiber and sugar. Aflatoxin contamination risk: Poorly stored groundnuts or dried fruits may harbor fungal toxins.
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  Nutritive Value ofCommon Dry Fruits & Nuts (per 100 g, edible portion) English Name বাংলা নাম Energy (kcal) Protein (g) Fat (g) Carbohy drate (g) Iron (mg) Calcium (mg) Highlights Almond কাঠ বাদাম 655 20.8 58.9 10.5 4.0 230 Vit E, Mg, healthy fats Walnut আখরোট 650 15.2 65.2 11.0 2.3 100 Omega-3 fatty acids Cashew nut কাজু বাদাম 553 18.2 47.8 30.2 5.9 45 Copper, Mg, Fe Pistachio পেস্তা বাদাম 562 20.6 45.3 27.5 7.3 131 Vit B6, K, antioxidants Groundnut (Peanut) চিনাবাদাম 567 25.3 40.1 26.7 2.5 90 Affordable protein, Niacin Raisins কিসমিস 300 3.0 0.5 79.0 1.7 50 Natural sugars, K Dates (dried) খেজুর 317 2.5 0.4 75.0 3.0 120 Iron, folate, fiber Figs (dried) শুকনো ডুমুর 241 3.3 0.9 63.9 4.1 162 Ca, Fe, fiber Apricots (dried) খোবানি 200– 250 3.5 0.5 63.0 2.7 55 Beta-carotene (Vit A) Coconut শুকনো High saturated fat