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

How do sponges try to protect themselves, Q. How do sponges try to protect ...

Q. How do sponges try to protect themselves against harm from the environment? Is that method rudimentary or efficient? Sponges can close their pores to avoid the entrance of w

Hypoglycaemia, Hypoglycaemia is defined as state of low blood glucose level...

Hypoglycaemia is defined as state of low blood glucose level of less than 50mg/dl. Low blood sugar level varies from person to person. Causes Since hypoglycaemia can occur in

Distinguish between epithelial and connective tissues, Distinguish between ...

Distinguish between epithelial and connective tissues with respect to their cell arrangement? PROVIDE a specific example (for both tissue types) of how the arrangement of cells hel

Ringworms (cutaneous mycoses), Ringworms (cutaneous mycoses) Cutaneous...

Ringworms (cutaneous mycoses) Cutaneous mycoses – also called dermatomycoses, occur worldwide and represent the most common fungal diseases in humans. The dermatophytes are th

Explain nucleosides, Nucleosides : compounds formed from a nitrogenousba...

Nucleosides : compounds formed from a nitrogenousbase and  a penstose sugar.

Flame cells, where are flame cells present?

where are flame cells present?

Explain identifying features of rhizopus - food microbiology, Explain Ident...

Explain Identifying features of Rhizopus? Macroscopically Rhizopus appears as a white cottony mass (look at rhizopus growth on media above) growing rapidly and spread over enti

Explain the solid-liquid equilibria, Explain the Solid-Liquid Equilibria? ...

Explain the Solid-Liquid Equilibria? A freezing-point curve (freezing point as a function of liquid composition) and a solubility curve (composition of a solution in equilibriu

Factors related to causing malnutrition among chd patients, Define Factors ...

Define Factors related to Causing Malnutrition among CHD Patients? The various factors related to causing malnutrition among CHD patients are hypoxia (reduction in oxygen suppl

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