Exploring the diverse roles of vitamins in supporting physiological function and cellular processes.
Vitamins are organic compounds essential for numerous metabolic processes. Unlike macronutrients, vitamins are needed in small quantities and do not provide energy. Instead, they function as cofactors in enzymatic reactions and support critical physiological processes.
Vitamins are classified into two categories: fat-soluble (A, D, E, K) and water-soluble (B vitamins and C). This distinction affects how the body absorbs, transports, and stores these nutrients.
Fat-soluble vitamins are absorbed with dietary fats and stored in body fat. They can accumulate in tissues over time.
Supports vision, immune function, and skin health. Found in animal products (retinol) and plant sources (beta-carotene). Excessive intake can accumulate, requiring moderate consumption.
Regulates calcium absorption and bone health. Synthesized by skin exposure to sunlight; also found in fatty fish, egg yolks, and fortified dairy products.
Provides antioxidant protection for cells. Found in nuts, seeds, vegetable oils, and leafy greens. Supports cellular function and membrane integrity.
Essential for blood clotting and bone metabolism. Found in leafy greens, broccoli, and other cruciferous vegetables. Produced by intestinal bacteria.
Water-soluble vitamins are not stored in the body and must be consumed regularly. Excess amounts are generally excreted through urine.
The B complex includes eight vitamins (B1, B2, B3, B5, B6, B7, B9, B12) that support energy metabolism, nervous system function, and red blood cell formation. Found in grains, meats, legumes, and vegetables.
Supports collagen synthesis, immune function, and antioxidant protection. Found in citrus fruits, berries, and bell peppers. The body cannot synthesize or store this vitamin.
Meat, fish, eggs, and dairy provide complete B vitamin profiles, fat-soluble vitamins, and vitamin D, making them nutrient-dense sources.
Leafy greens, legumes, nuts, seeds, and whole grains provide vitamins and minerals. Variety ensures a broader micronutrient profile.
Manufacturers fortify certain foods (cereals, milk, juices) with specific vitamins to increase micronutrient availability in the food supply.
Vitamins are essential micronutrients that enable countless physiological processes. Understanding their sources and functions helps contextualize dietary diversity and nutrient balance in daily food choices.
This is not a medicinal product. Consult a doctor before use.