Scientific Research Supporting Vizuo XL

Natural Athletic Nutrition knows that our customers want proof that the nutritional products they consume are based upon real science.  Therefore, we have included a compilation of just some of the scientific research behind Vizuo XL. 

The following is a list of articles appearing in medical and science journals that support the efficacy of the ingredients in Vizuo XL.  We provide a direct link to the scientific research abstracts that appear in PubMed/Medline, a database run by the United States National Library of Medicine (NLM®).  NLM is operated by the National Institutes of Health (NIH), an agency of the United States federal government.

Please click on the link to view the full abstract: 

1. Supplementation with the carotenoids lutein or zeaxanthin improves human visual performance.
   
   
2. Acetyl-L-carnitine up-regulates expression of voltage-dependent anion channel in the rat brain. 
   
   
3. Macular pigment and visual performance under glare conditions.
   
   
4. Improvement of visual functions and fundus alterations in early age-related macular degeneration treated with a combination of acetyl-L-carnitine, n-3 fatty acids, and coenzyme Q10.
   
   
5. Purified high-dose anthocyanoside oligomer administration improves nocturnal vision
   (note: Vizuo XL is packed with a whopping 160mg of Bilberry standardized to contain 25% proanthocyanidins)
   
   
6. Retrospective analysis of the effect of vinpocetine infusion in ophthalmologic disorders.
   
   
7. Effect of vasoactive agents on visual functions and ocular blood flow in patients with early manifestations of age-related macular degeneration.
   
   
8. Molecular and cellular assessment of ginkgo biloba extract as a possible ophthalmic drug.
   
   
9. The influence of L-acetylcarnitine on reinnervation of the oculomotor nerve.
   
   
10. Electrophysiological analysis of the effects of ginkgo biloba on visual processing in older healthy adults.
    
    
11. Polyphenolics in grape seeds-biochemistry and functionality.
    
    
12. Stimulatory effect of cyanidin 3-glycosides on the regeneration of rhodopsin.
    
    
13. Reversible binding of kynurenine to lens proteins: potential protection by glutathione in young lenses.
    
    
14. Carotenoids and flavonoids contribute to nutritional protection against skin damage from sunlight.
    
    
15. Epigallocatechin gallate, an active ingredient from green tea, attenuates damaging influences to the retina caused by ischemia/reperfusion.
    
    
16. Macular carotenoids: lutein and zeaxanthin.
    
    
17. Bilberry (Vaccinium myrtillus) anthocyanins modulate heme oxygenase-1 and glutathione S-transferase-pi expression in ARPE-19 cells.