Baldness is not inevitable, even if it may be natural. Many natural things in life related to aging can be prevented or even reversed with appropriate techniques. Hair loss may be simply caused by a lack of proper nutrition or accelerated by a lack of proper nutrition. Sometimes it can be that simple although not always, but if you are balding you want to make sure this is not a factor.
Let's be honest, few people if anyone wants to be bald. Sure, some guys and even a few women (although I can not think of any women) look great bald, like Tellly Savalas and Yul Brenner and even my friend Bald Mark. Most people do not look great bald, although a shaved head can be better than a comb over or other silly looking haircut. And many women are absolutely embarrassed at their thinning hair and resort to beehive hairdos, wigs, and wearing hats.
Some of the vitamins important to your hair are listen below.
Vitamin A is important to keep your hair roots lubricated. It's found in liver, many vegetables, and eggs as well. Vitamin C is also important as it helps with absorption of nutrients necessary for hair growth such as iron and glucosamine, as well as head scalp blood circulation which feeds your follicles. The B vitamins are necessarily as well, essential in fact for hair growth or regrowth, and are found in many foods, in including veggies like peas and carrots, legumes such as the various beans, and nuts.
Vitamin E improves oxygen absorption which increases circulation to your scalp. Vitamin E is found in many nuts, vegetables, olive oil, eggs, and sweet potatoes among other foods. Biotin, sometimes called Vitamin H, is also essential and can strengthen hair as well as nails. Many foods contain biotin despite not in good concentrations. Royal jelly and brewer's yeast do contain a lot of biotin, as well as beer, especially dark beer. Both drinking it as well as applying it to your scalp can help. We recommend doing this in the shower or tub! In fact some shampoos contain beer precisely for this reason.
Notice that veggies and fruits are important so try to at a lot of these. It also helps to eat as balanced and healthy a diet as possible, which is easier said than done. For example I'm writing this in a hotel where I'll be living the next 6 days, and the room service menu does not look that healthy!