Explain the bioavailability of vitamin e, Biology

Assignment Help:

Explain the Bioavailability of Vitamin E?

For dietary purposes, vitamin E activity is expressed as a-tocopherol equivalents (a-TEs). One α-TE is the activity of l mg α-tocopherol. To estimate the α-TE of  a mixed diet containing natural forms of vitamin E, the number of milligrams of  β-tocopherol should be multiplied by 0.5, y-tocopherol by 0.1, and a- tocopherols by 0.3.  The bioavailability of tocopherols varies inversely with the uptake. This means that  ingesting four times the amount of the vitamin raises tissue levels by only two-fold. 

A high correlation exists between the total fat and tocopherol concentrations in blood serum. Thus, diseases associated with high serum lipids (hypothyroidism, diabetes, hypercholesterolemia) produce high plasma vitamin E levels and those associated to low serum lipids (abetalipoproteinemia-a genetic disorder that interferes with the  normal absorption of fats and fat-soluble vitamins, malnutrition, cystic fibrosis) produce low vitamin E levels.


Related Discussions:- Explain the bioavailability of vitamin e

Genetics, Considering a pair of homologous chromosomes containing a gene ha...

Considering a pair of homologous chromosomes containing a gene having two different alleles how many different genotypes can the individual present?

Blood sampling , BLOOD SAMPLING : In blood sampling, the skin is deliberat...

BLOOD SAMPLING : In blood sampling, the skin is deliberately punctured in order to take a blood sample for analysis. If this is done carelessly, it is easy for microorganisms eith

#title.circulatory system, #question.what is the mechanism of circulatory s...

#question.what is the mechanism of circulatory system .

Patients with mild mitral regurgitation, Q. Patients with mild mitral regur...

Q. Patients with mild mitral regurgitation? Patients with mild mitral regurgitation and normal left ventricular size and function do well long term, However, those with severe

Determine the architecture of cell, Determine the architecture of cell ...

Determine the architecture of cell There are over 200 types of cells in the human body, which are assembled into a variety of tissues, such as, the epithelia, connective tissue

Show ions used in electrical impulse transmission in neurons, Q. What are t...

Q. What are the two major ions that participate in the electrical impulse transmission in neurons? The two major ions that participate in the electrical impulse transmission in

Define the uremia and nitrogen disposal, Define the Uremia and Nitrogen Dis...

Define the Uremia and Nitrogen Disposal? In animals, faecal and renal nitrogen were enhanced and decreased uremia was seen in normal and nephrectomised animals. The mechanisms

Point and non-point sources, Point and Non-Point Sources The discharg...

Point and Non-Point Sources The discharge of effluents in receiving water body at a specific site are referred to a point sources in contrast to the inflow of pollutants in a

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd