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Related Concept Videos

Vitamins01:30

Vitamins

Vitamins, derived from the Latin word for life, are essential organic substances required in small quantities for optimal growth and overall well-being. Unlike other organic nutrients, vitamins don't act as sources of energy or building materials but rather facilitate these nutrients' utilization by the body. Vitamins are predominantly coenzymes, assisting enzymes in specific chemical actions, like the oxidation of glucose for energy involving B vitamins. Most vitamins are not produced in our...
Role of Vitamins in Maintaining Bone Health01:25

Role of Vitamins in Maintaining Bone Health

The growth and maintenance of bone are regulated by a combination of nutritional factors, including vitamins, such as vitamin A, B12, C, D, and K.
Vitamin A
Vitamin A is involved in the process of bone remodeling. Retinoic acid, the active metabolite of Vitamin A, has nuclear receptors in osteoblasts and osteoclasts, which are involved in bone remodeling.
Vitamin B12
Vitamin B12 acts as a cofactor during the formation of osteoblast-related proteins, such as osteocalcin. Vitamin B12 plays a role...
Mineral, Vitamin and Water Absorption01:27

Mineral, Vitamin and Water Absorption

Electrolytes are essential minerals and ions primarily obtained from the diet and absorbed through the gastrointestinal tract. Most electrolytes are absorbed in the small intestine. While the absorption of iron and calcium primarily occurs in the duodenum, calcium is also absorbed in the jejunum and ileum. In these regions, passive diffusion contributes to its absorption alongside active transport mechanisms in the duodenum. These ions can exit the enterocytes through specialized active...
Essential Minerals for Bone Health01:31

Essential Minerals for Bone Health

The minerals contained in all of the food we consume are essential for our organ systems. However, certain essential minerals, such as calcium, phosphorus, magnesium, manganese, and fluoride, largely affect bone health.
Calcium and Phosphorus
Calcium is a critical component of bones, especially in the form of calcium phosphate and calcium carbonate. Since the body cannot make calcium, it must be obtained from the diet. However, calcium cannot be absorbed from the small intestine without...
Role of Skin in Vitamin D Synthesis01:23

Role of Skin in Vitamin D Synthesis

The skin plays a crucial role in the synthesis of vitamin D, a vital nutrient for various physiological processes in the body. Vitamin D is unique because it can be synthesized in the skin through a series of chemical reactions triggered by exposure to ultraviolet B (UVB) radiation from sunlight.
The solar UV B rays (290-315 nm) are absorbed by the skin, and 7-dehydrocholesterol (provitamin D3) photolyzes it to previtamin D3, which undergoes a rapid transformation to vitamin D3(cholecalciferol).
Minerals01:26

Minerals

Minerals are essential nutrients that the human body needs in small amounts to work properly. They play a vital role in many bodily functions, such as building strong bones and transmitting nerve impulses. Some minerals are needed for hormone production or to maintain a normal heartbeat. Major minerals include calcium, phosphorus, potassium, sulfur, sodium, chlorine, and magnesium, while trace minerals include iron, manganese, copper, iodine, zinc, cobalt, fluoride, and selenium.

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Related Experiment Videos

Who needs vitamin supplements?

Judy More

    The Journal of Family Health Care
    |May 5, 2007
    PubMed
    Summary

    Vitamin D and folic acid supplementation are recommended for various groups, including babies from one to six months, women of childbearing age, pregnant and breastfeeding women, and individuals over 65. New low-cost formulations are available for eligible recipients.

    Area of Science:

    • Public Health Nutrition
    • Maternal and Child Health
    • Nutritional Supplementation

    Background:

    • Infant and maternal vitamin status is crucial for long-term health.
    • Specific age groups and physiological states necessitate targeted nutritional support.
    • Existing vitamin supplementation guidelines require clear, age-appropriate recommendations.

    Purpose of the Study:

    • To outline recommended vitamin D and folic acid supplementation schedules.
    • To identify specific populations benefiting from these supplements.
    • To introduce new, affordable vitamin formulations for public health initiatives.

    Main Methods:

    • Review of current nutritional guidelines and recommendations.
    • Identification of key demographic groups for supplementation.

    Related Experiment Videos

  • Introduction of new vitamin formulations (Healthy Start).

    • Main Results:

    • Breast-fed babies require supplementation from six months, or one month if maternal vitamin status is uncertain, continuing for five years.
    • Adolescent and potentially pregnant women need 400 mcg of folic acid daily.
    • Vitamin D supplementation is advised for pregnant/breastfeeding women, individuals over 65, and the housebound.

    Conclusions:

    • Targeted vitamin D and folic acid supplementation is essential for vulnerable populations.
    • New Healthy Start formulations provide accessible, low-cost options.
    • Distinction between Recommended Daily Allowances (RDAs) for adults and Reference Nutrient Intakes (RNIs) for children is critical.