Product Description

Why Take Vitamin A?

Immunity: Not only does Vitamin A strengthen "entry points" into the human body, such as mucous membranes, the lining of the eyes, respiratory, urinary and intestinal tracts, it is also essential for the lymphocytes, or white blood cells, that fight infection once in the body.

Eyes: Vitamin A, when converted into the retinal (retinaldehyde) form, is vital for healthy eyes. It allows the eye to effectively distinguish between light and dark, thus improving night vision. Furthermore, vitamin A is believed to fight against cataracts, macular degeneration, glaucoma and other age-related ocular diseases.

Bones and Teeth: When converted into retinoic acid, vitamin A effectively maintains healthy bones and teeth. Dentin, which also requires vitamin A, forms the hard layer of material within our teeth, thereby ensuring their strength. Vitamin A also plays an important role in replacing worn out or old tissue with newer tissue to ensure healthy bones and teeth.

Urinary Stones: Urinary calculi, or solid particles in the urinary system, may cause pain, nausea and vomiting when stones are formed. Vitamin A produces a mineral compound within the body called calcium phosphate that may prevent the formation of these solid particles.

Skin: The antioxidant properties of vitamin A combat free radicals that can damage the skin through oxidative stress. By maintaining proper moisture retention, the skin is not only protected from common dryness, but also keratinization (the process in which the epidermis hardens into a heavy material that makes up hair and nails), psoriasis (a skin disease marked by red, itchy or scaly patches), acne, and even wrinkling.

Reproductive System: Vitamin A is known to be essential for the reproductive process for both males and females.
What is Vitamin D?

Vitamin D works synergistically with vitamin A, preferring a 7:1 ratio. It plays a role in absorbing and regulating calcium and phosphorus. It also helps build strong bones, teeth and skin. It is vital to the health of the nervous system and kidneys.

It can be derived from the suns action on oils secreted and reabsorbed by the skin. But the more tanned the skin, the less it is absorbed. Also, the older the skin, the less active it is in producing vitamin D. This vitamin helps the body synthesise protein and incorporate magnesium into bone/teeth structures.

Benefits of Vitamin D:

Bone Health: The minerals calcium and phosphorus form a large part of the substance hydroxyapatite, which makes up over half of our bone composition. Two substances, however, primarily regulate the body's use of calcium and phosphorus: parathyroid hormone (PTH) and vitamin D. PTH triggers the release of calcium from our bones into our bloodstream when levels drop too low.

Vitamin D, on the other hand, prevents PTH from drawing too much upon our bones' supply of calcium by helping our intestines absorb more calcium and by allowing our kidneys to hold onto more calcium. By regulating our PHT function, vitamin D not only protects our bone health, but also fights against too much calcium in our bloodstream that can cause cardiovascular problems.

Immunity: Vitamin D plays a crucial role in our immune system by triggering macrophage cells that release antibacterial proteins. These proteins are shown to possibly prevent infections, including Mycobacterium tuberculosis (responsible for tuberculosis) and Mycobacterium leprae (responsible for leprosy).

Blood Pressure: Vitamin D may help to manage our blood pressure by monitoring the system that increases our blood pressure when it gets too low, called the renin-angiotension system. Our body needs a healthy dose of vitamin D to inhibit this system from raising our blood pressure too high.

Insulin: Vitamin D regulates the levels of PTH from releasing too much calcium into the bloodstream. An overdose of PTH in our bloodstream can also cause fat cells to collect too much calcium, triggering the cells to produce too much cortisol, a hormone that counteracts the effect of insulin, making it difficult for the body to metabolise sugars.

Furthermore, when too much calcium collects, our cells stop producing GLUT*4, a protein that helps transfer sugar into the bloodstream and to our cells. GLUT*4, however, functions only when triggered by insulin. Without sufficient vitamin D, not only do our bodies produce too little GLUT*4 to transport the necessary sugar to our cells, but also lacks the effectiveness of insulin to stimulate that process.

Muscles: Studies have shown that a vitamin D deficiency not only leads to decreased muscle strength (independent of muscle mass), but also may inhibit proper nerve firing and triggering of muscle contractions.

Mental Health: Recommended intake of vitamin D may greatly reduce the risks of age-related cognitive disorders, such as senile dementia, Alzheimer's disease, and mood disorders such as depression.

Warnings:

• If you are pregnant or lactating consult a health care practitioner before using Vitamins A & D.
• Both Vitamin A and Vitamin D are fat-soluble nutrients and can accumulate at toxic levels in fatty tissue, avoid excessive intake of these nutrients
• Studies indicate a possible relationship between high vitamin A intake from foods and supplements and the risk of hip fracture among postmenopausal women
• Doses greater than *0,**0 IU of Vitamin A have caused birth defects, particularly during the first seven weeks of pregnancy. Women who could potentially become pregnant should limit their daily vitamin A levels to less than *0,**0 IU daily and consult a health care practitioner to determine an appropriate dosage.
• Occasional side effects reported with large doses of Vitamin D include a disorder known as hypercalcemia, which causes calcium deposits in soft tissues. Signs of the disorder include headache, weakness, nausea, vomiting, confusion, kidney problems and constipation. Consult a health care practitioner if you experience any of these symptoms while taking Vitamin D.