Vitamin A and B:
Vitamin A:
Vitamin A is a fat-soluble vitamin that plays a critical role in vision, immune function, and skin health.
It is found in two main forms in the diet: retinoids (found in animal products such as liver, dairy, and fish) and carotenoids (found in plant-based foods such as carrots, spinach, and sweet potatoes).
Retinoids are more easily absorbed by the body and are important for vision and cell growth, while carotenoids are converted into retinoids in the body and have antioxidant properties.
Vitamin A deficiency is a common problem in developing countries and can lead to night blindness, dry skin, and increased susceptibility to infections.
Excessive intake of vitamin A can also be harmful and can cause symptoms such as dizziness, nausea, and liver damage.
Vitamin B:
Vitamin B is a group of water-soluble vitamins that play important roles in energy production, metabolism, and brain function.
There are eight different B vitamins, including B1 (thiamine), B2 (riboflavin), B3 (niacin), B5 (pantothenic acid), B6 (pyridoxine), B7 (biotin), B9 (folate), and B12 (cobalamin).
B vitamins are found in a variety of foods, including whole grains, meat, fish, eggs, dairy, leafy greens, and legumes.
Deficiencies in B vitamins can lead to a variety of health problems, including fatigue, weakness, anemia, skin disorders, and nerve damage.
Some groups of people may be at increased risk for B vitamin deficiencies, such as vegetarians, older adults, and people with certain medical conditions that affect nutrient absorption.
Most people can get enough B vitamins from a balanced diet, but in some cases, supplements may be recommended by a healthcare professional.
