Researchers have noted that combinations of nutrients often are more effective in combination against eye condition problems than the same nutrients taken by themselves.
The combination of vitamins A and C taken with omega-3 fatty acids is a good example.
In one such study researchers investigated a number of nutrient patterns based on diet. They were:
- 1. Sodium pattern: niacin, thiamin, carbohydrates, protein, zinc, vitamin B6 and sodium.
- 1. Fatty acid pattern: oleic acid, monounsaturated fats, polyunsaturated fats, linoleic acid, trans fatty acid, linolenic acid, vitamin E and saturated fats.
- 3. Mixed pattern: vitamin B12, vitamin D, cholesterol and calcium.
- 4. Antioxidant pattern: high intake of beta and alpha carotene, vitamin A and vitamin C.
- 5. Omega-3 pattern: docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA)
The sodium and fatty acid patterns were linked to increased cataract risk; while the antioxidant pattern had a 79% reduced risk (compared to sodium pattern). Omega-3 pattern also reduced cataract risk.
Research: Sedaghat, F., Ghanavati, M., Nezhad, Hajian, P., Hajishirazi, S., Ehteshami, M., et al. (2017). Nutrient patterns and risk of cataract: a case-control study. Int J Ophthalmol, Apr 18;10(4):586-592.