Conversions of units and weights for vitamins A, Beta Carotene, D, E, B1, B6, Folic and Pantothenic Acid

[Guest guest]

Just for the record,

 

here are some values of conversion of various vitamins.

 

Kind regards

Sepp

 

 

Calculation of Vitamin A and Beta-Carotene, Vitamins D, E and C, Thiamin,

Vitamin B6, Folacin and Pantothenic Acid Quantities

 

Vitamins must be quantified as mg/µg but iu may

be given for additional information

if desired. The form of certain vitamins to be

used as the basis of calculating quantities

has caused problems and these difficulties are

covered here together with the conversion

of iu to and from mg/µg where applicable.

Please note that quantities refer to mg or µg of

the compound itself, not of a preparation

of the compound.

 

Vitamin A

This vitamin must be calculated as µg of retinol

or µg of retinol equivalents on the

basis that 6 µg of beta-carotene or 12 µg of

other biologically active carotenoids equal

1 µg of retinol equivalent.

(Particular care should be taken when calculating

the vitamin A equivalent of beta-carotene

products from the USA where the conversion is on

the basis of 2 µg beta-carotene

to 1 µg retinol equivalent.)

To convert iu of vitamin A to µg of retinol equivalents, divide by 3,33

eg 2664 iu vitamin A = 800 µg vitamin A

The EC RDA for vitamin A is provided by 4,8 mg of beta-carotene because

4,8 mg ÷ 6 = 0,8 mg or 800 µg retinol equivalents.

 

Vitamin D

Vitamin D is to be calculated as µg of

ergocalciferol (vitamin D2) or as µg of

cholecalciferol

(vitamin D3).

To convert iu of vitamin D to µg, divide by 40

eg 200 iu vitamin D = 5 µg vitamin D

 

Vitamin E

Vitamin E must be calculated as mg of d-alpha tocopherol equivalents (a-TE).

To convert iu of vitamin E to mg, divide by 1,49.

eg 14,9 iu vitamin E = 10 mg vitamin E

100 iu vitamin E = 67 mg vitamin E

1 mg of vitamin E (a-TE) = 1,000 mg d.alpha-tocopherol itself

= 1,096 mg d-alpha-tocopheryl acetate

= 1,231 mg d-alpha-tocopheryl acid succinate

= 1,355 mg dl-alpha-tocopherol

= 1,490 mg dl-alpha tocopheryl acetate

= 1,674 mg dl-alpha-tocopheryl acid succinate

Table: Relative biological activities of different forms of Vitamin E

mg per iu iu per mg

d-alpha-tocopherol 0,67 1,49

d-alpha-tocopheryl acetate 0,735 1,36

d-alpha-tocopheryl acid succinate 0,83 1,21

dl-alpha-tocopherol 0,91 1,10

dl-alpha-tocopheryl acetate 1,00 1,00

dl-alpha-tocopheryl acid succinate 1,12 0,89

 

Vitamin C

Vitamin C must be calculated as mg of ascorbic acid.

Ascorbic acid is 88,4% of sodium ascorbate, 42,5%

of ascorbyl palmitate, 89,7% of

anhydrous calcium ascorbate and 82,0% of calcium

ascorbate dihydrate. (Calcium is

10,3% of anhydrous calcium ascorbate and 9,4% of the dihydrate.)

1 mg of ascorbic acid = 1,13 mg sodium ascorbate

= 2,35 mg ascorbyl palmitate

= 1,115 mg calcium ascorbate (anhydrous)

= 1,22 mg calcium ascorbate dihydrate

 

Thiamin

Thiamin must be calculated as mg of thiamin base.

Thiamin base is 78,7% of thiamin hydrochloride

and 81,0% of thiamin mononitrate.

1 mg thiamin base = 1,27 mg thiamin hydrochloride

= 1,23 mg thiamin mononitrate

 

Vitamin B6

Vitamin B6 must be calculated as mg of pyridoxine base.

Pyridoxine base is 82,0% of pyridoxine hydrochloride

1 mg of pyridoxine base = 1,22 mg of pyridoxine hydrochloride

 

Folacin

Folacin must be calculated as µg of total folic acid.

 

Pantothenic acid

Pantothenic acid must be calculated as mg of D-pantothenic acid.

Pantothenic acid is 92% of calcium pantothenate and 106% of panthenol:

1 mg pantothenic acid = 1,09 mg calcium pantothenate

= 0,94 mg panthenol

 

 

 

--

 

 

The individual is supreme and finds its way through intuition.

 

Sepp Hasslberger

 

 

My page on physics, new energy, economy: http://www.hasslberger.com/

 

Critical perspective on Health: http://www.newmediaexplorer.org/sepp/

[Guest guest]

Thanks Sepp. Very informative and useful. Don't hesitate to send other

conversions for the minerals, the lesser vitamins, etc.

JP

-

Sepp Hasslberger

 

 

here are some values of conversion of various vitamins.

 

Kind regards

Sepp

 

Calculation of Vitamin A and Beta-Carotene, Vitamins D, E and C, Thiamin,

Vitamin B6, Folacin and Pantothenic Acid Quantities

 

(snip)

----------

 

 

 

Version: 7.0.308 / Virus Database: 266.11.6 - Release 5/6/2005