mẫu slide thuyết trình về vitamin e

Vitamin EIntroduction Structure and Chemical Classification Chemical Structure and Classification Does and Toxicityand Toxicity Deficiency Deficiency... Vitamin E is a powerful antioxid

UNIVERSITY OF MEDICINE AND PHARMACY

IN HO CHI MINH CITY

UNIVERSITY OF MEDICINE AND PHARMACY

IN HO CHI MINH CITY

GROUP 4: VITAMIN E

Vitamin E

Introduction Structure and Chemical

Classification

Chemical Structure and Classification Does and Toxicityand Toxicity Deficiency Deficiency

Vitamin E is an antioxidant.

It may help protect your cells from damage

I.Introduction

This essential nutrient occurs naturally in many foods.

It’s also available as a dietary supplement

Sometimes, it’s in processed foods

Vitamin E is fat-soluble

You’ve probably seen rust on your bike or car.

A similar process of oxidation and accelerated aging takes place in your body when cells are exposed to molecules called free radicals.

Free radicals weaken and break down healthy cells

These molecules may also contribute to heart disease and cancer.

Free radicals form as a result of normal body

processes

They cause damage that shortens the life of your cells

Vitamin E is a powerful antioxidant that may help reduce free radical damage and slow the aging process of your cells, according to the National Institutes of Health (NIH).

Researchers have investigated the use of vitamin

E as treatment for a variety of degenerative

diseases, including:

• hardening of the arteries

• high blood pressure

• heart disease

• cancer

Vitamin E may help people with higher environmental or lifestyle risk factors.

Free radicals are increased by:

• cigarette smoking

• exposure to air pollution

• high exposure to ultraviolet rays from sunlight

Vitamin E may help repair damaged cells.

Chemical structure and classification

• Vitamin E is an oil-soluble vitamin There are two types of vitamin E: natural and synthetic

• Vitamins of natural origin: extracted from

vegetable oils

Soybean Maize

Barley seed

Oily seeds: sunflower seeds

• Vitamin E in nature consists of seven different forms of tocopherol and tocotrienol

• Tocopherol: All tocopherols have the same phthalocyanines

Vitamin E synthetic

It is not economically feasible to extract the natural foods, so

a synthetic vitamin E is produced However, the effect of

Vitamin E synthetic is lower than that of natural origin.

• If you eat a normal diet with vegetable oils, green vegetables, ensuring adequate supply of vitamin E is not difficult.

• Only take vitamin E supplements beyond 30 years of age or when there is evidence of vitamin E deficiency that can not be provided through diet

- Vitamin E supplements should only be applied

to those with dry skin, low in vitamin E diets

- The need for vitamin E supplements is about :

Vitamin E

is likely safe for most healthy people when taken by mouth or applied to the skin Most people do not experience any side effects when taking the recommended daily dose,

which is 15 mg.

Relatively nontoxic Toxicity with

supplement Interferes with vitamin K’s role in blood clotting,

augmentation of anti-blood clotting medication and increases hemolysis

High doses can also cause nausea, diarrhea, stomach cramps, fatigue, weakness, headache, blurred vision, rash, and bruising and bleeding.

Special Precautions & Warnings

Pregnancy Breast-feeding Infants and children Angioplasty, a heart

procedure

Special Precautions & Warnings