Types of vitamins with examples:

1. Vitamin A - found in foods like carrots, sweet potatoes, and spinach
2. Vitamin B - includes B1 (thiamine), B2 (riboflavin), B3 (niacin), B6 (pyridoxine), B12 (cobalamin), found in foods like whole grains, meat, fish, and dairy products
3. Vitamin C - found in foods like citrus fruits, strawberries, and bell peppers
4. Vitamin D - found in foods like fatty fish, fortified dairy products, and sunlight exposure
5. Vitamin E - found in foods like nuts, seeds, and vegetable oils
6. Vitamin K - found in foods like leafy green vegetables, broccoli, and soybeans.

Water-Soluble Vitamins:

- Vitamin C (Ascorbic acid): Found in citrus fruits, berries, and leafy greens.
- Vitamin B1 (Thiamine): Found in whole grains, legumes, and nuts.
- Vitamin B2 (Riboflavin): Found in dairy products, eggs, and almonds.
- Vitamin B3 (Niacin): Found in meat, poultry, and fish.
- Vitamin B6 (Pyridoxine): Found in potatoes, bananas, and poultry.
- Vitamin B12 (Cobalamin): Found only in animal products, such as meat, dairy, and eggs.
- Biotin: Found in eggs, nuts, and legumes.
- Pantothenic acid: Found in whole grains, legumes, and dairy products.
- Folic acid: Found in leafy greens, beans, and fortified grains.

Fat-Soluble Vitamins:

- Vitamin A (Retinol): Found in liver, dairy products, and leafy greens.
- Vitamin D: Found in fatty fish, eggs, and fortified milk.
- Vitamin E (Tocopherols): Found in nuts, seeds, and vegetable oils.
- Vitamin K: Found in leafy greens, broccoli, and fermented foods.