Source: Nutrition Detective
Vitamin A Deficiency DOES NOT EXIST! #VitaminADetox #VitaminAToxicity
https://youtu.be/RMF56gzc-UI
"Vitamin A deficiency" doesn't exist and has never existed. What was called "Vitamin A deficiency" has always been deficiencies of OTHER nutrients in the diet. Animal studies and human studies, up to 2 years long, have shown NO problems with extremely low Vitamin A intakes, proving it is NOT an essential nutrient. Grant Genereux has been on a absolutely minimal Vitamin A diet for SIX YEARS, getting his serum retinol down to 3 microg/dL (0.1 micromol/L) without any health problems, while watching his life-threatening kidney disease and horrible eczema DISAPPEAR.
Slideshow (with referece hyperlinks): https://docs.google.com/presentation/d/1ke6OwFVp75HkV8sgBb6csJqH4YZuqj22wkw9_N4xc4g/edit#slide=id.ga853fb132c_1_22
PATHOGENESIS DUE TO VITAMINE DEFICIENCY IN THE RAT. (A. D. EMMETT & F. P. ALLEN)
“The rats were fed on definite dietary planes which would produce normal growth except for the lack of either vitamine A or B. From these groups, animals were selected which were representative. Care was taken to see that the animals were free from infection. Control tests were made on tissues from rats fed a complete diet.
[...]
In the rats which lacked vitamine A in their diet, there were no special outstanding pathological findings. In marked contrast with the lack of vitamine B the livers showed no fatty changes, the adrenals no hypertrophy, and the thymus no atrophy. The control animals proved to be normal as far as histological examination showed.”
Carotenoids (2013 review paper)
“None of the carotenoids are considered essential nutrients. No carotenoid is directly involved in a vital metabolic pathway, nor has the relative absence of a carotenoid been linked exclusively to the induction of a specific deficiency or chronic disease (hence, the lack of FDA-approved “health claims”).”
VITAMIN A DEFICIENCY AND THE REQUIREMENTS OF HUMAN ADULTS
“Twenty-three 'conscientious objectors', twenty men and three women, volunteered to live on a diet designed to be deficient in these substances but complete in every other respect. The absence of vitamin A and its precursors was confirmed spectrophotometrically and biologically. [...] The disappearance of carotene from the blood plasma of the deprived volunteers confirmed the absence of these substances from the diet.
[...]
With efficiency for dark adaptation and plasma values for vitamin A as criteria, none of the sixteen deprived subjects became depleted within a year.”
Vitamin A and epilepsy: a dietary contretemps.
“In order to investigate further a possible connection between vitamin A and epilepsy, Sharman (30) then studied 8 epileptic patients given a vitamin A-depleted diet for 2 years. No cases of night blindness were observed. When their plasma retinol level had reached 230 IU/L, they were given a vitamin A supplement. Although the patients reported fewer fits during the depletion period, there was no increase in the fits during repletion. The author (30) called his experiment a “dietary contretemps.””
VITAMIN A REQUIREMENT OF HUMAN ADULTS: An Experimental Study of Vitamin A Deprivation in Man.
“The great majority of clinical examinations revealed no significant differences between the deprived and a non-deprived group, or in the same person before and after deprivation of vitamin A.
[...]
In several of the subjects follicular hyperkeratosis was present at the start and varied during the experiment, but the variations bore no relation to the vitamin A intake.”
Vitamin A deficiency in Latin America and the Caribbean: an overview. (1998)
“Vitamin A deficiency (VAD) has been known to exist in Latin America and the Caribbean since the mid-1960s; [...] there was little interest in controlling it because of the low frequency of clinical findings.”
“In most countries of the Region, however, VAD was not considered a problem of public health significance because ocular [EYE] lesions leading to permanent blindness were not frequently observed despite prevalences of low serum retinol [Vitamin A] hovering near the cutoff of 15% then recommended by WHO.”
“On the other hand, ocular [EYE] signs attributable to clinical VAD were extremely rare in the 1980s and they have not been assessed more recently.”
Retinol deficiency and urinary stone disease: clinical evidence is missing.
“It was found that 68% of subjects in lower socioeconomic group had serum retinol levels between 10 and 19 ug%, and 4% below 10 ug%, but none of them showed any symptoms of retinol deficiency.”
Dietary Reference Intakes for Vitamin A...Zinc
“...the mean liver vitamin A stores in apparently healthy infants is lower, ranging from 0 to 320 μg/g of liver.”
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