For females this would usually be finished in about 1 hour 15minutes. For males this would be finished in about 1 hour. Olympic distance triathlon (1500m / 40m bike / 10km run) For females this would take about 2 hours 25mins. For males this would take about 2 hours. Half Ironman (1.9km swim / 90km bike / 21km run) Females usually take about 5 hours 30mins.
Zinc. Night blindness may also be the result of a zinc deficiency which reduces the activity of an enzyme that helps the body produce vitamin A (retinol dehydrogenase). Research has shown that taking a zinc supplement is helpful. Healthcare providers often recommend 15 - 30 mg of zinc daily for vision.
Vitamin C for eyes. Vitamin C is a health powerhouse. You can find it in fruits like oranges, kiwi, and strawberries, as well as vegetables like broccoli, mustard greens, and peppers.In addition to providing antioxidants, it can also help slow cataracts and provide needed eye vitamins for macular degeneration.here are vitamins for vision loss that you can take, but none of them produce miraculous results. Getting enough vitamins is important at every age, especially natural vitamins in your food. The functions of vitamins can be numerous.