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The Blood Type Diet Archives Volume 13

DHA and dyslexia

Posted By: Peter D'Adamo
Date: Monday, 1 May 2000, at 11:44 a.m.

In Response To: dyslexia (Cocky van Hesteren (A+))

It appears that certain fatty acids may be effective in treating dyslexia (see below). DHA (one of the fatty acids) is also high in eggs, and (at least in the States) can be purchased in suppplement form ('Neuromins' is one).

It is probably a bit higher in occurance in type A's. Another approach would be to lower or buffer excess cortisol by using either phosphatidyl serine or the Ayurvedic herb Booerhavia.


Am J Clin Nutr 2000 Jan;71(1 Suppl):323S-6S

Dark adaptation, motor skills, docosahexaenoic acid, and dyslexia.

Stordy BJ

School of Biological Sciences, University of Surrey, Guildford, United Kingdom.


Dyslexia is a widespread condition characterized by difficulty with learning and movement skills. It is frequently comorbid with dyspraxia (developmental coordination disorder), the chief characteristic of which is impaired movement skills, indicating that there may be some common biological basis to the conditions. Visual and central processing deficits have been found. The long-chain polyunsaturated fatty acids (LCPUFAs) are important components of retinal and brain membranes. In the preliminary studies reported here, dark adaptation was shown to be impaired in 10 dyslexic young adults when compared with a similar control group (P < 0.05, repeated-measures analysis of variance); dark adaptation improved in 5 dyslexia patients after supplementation with a docosahexaenoic acid (DHA)-rich fish oil for 1 mo (P < 0.05, paired t test on final rod threshold); and movement skills in a group of 15 dyspraxic children improved after 4 mo of supplementation with a mixture of high-DHA fish oil, evening primrose oil, and thyme oil (P < 0.007 for manual dexterity, P < 0.02 for ball skills, and P < 0.03 for static and dynamic balance; paired t tests).

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