Vitamin D helps the metabolizing of calcium and phosphorus in the body. Most people get enough of this with sunlight but the rest of people have to use supplements.
Vitamin D supplements.
No bodybuilders should not take vitamin d supplements. They should not abstain from all supplements either. They should take protein supplements in order to maximize their body's potential.
Different organizations recommend different amounts of vitamin D supplement to take each day. Most people can take vitamin D supplements with no problems.
You can take vitamins after the expiration date. They are normally safe to take. However, I wouldn't take them so long after they already expired.
Two good supplements to take in for arthritis are vitamin C and vitamin D. Some other supplements recommended for those who have arthritis are vitamin E, calcium, and B vitamins. http://www.rd.com/health/6-supplements-for-arthritis-sufferers/ can help you with more in detail about supplements that help with arthritis.
All the Vitamin D you need can be received through 15 minutes of sunlight a day.
A toxic level of vitamin D can only be acquired through overdosing on supplements. Too much vitamin D in the body can result in excess calcium in the blood and kidney problems.
You could find vitamin d supplements for bodybuilding at amazon.com. Amazon is a great website where a lot of products are made available for people to buy. Also they offer them for low prices.
Healthspan. Took it for 2 weeks and it works great.
Large doses of vitamin C or D are both dangerous. Please check with your doctor before taking any supplements.
Vitamin a, Vitamin b, vitamin c.
Some good vitamins supplements to boost someones health includes Vitamin C tablets and Vitamin D tablets. These supplements can be found at your nearest chemist.