• Taking vitamins is part of leading a healthy lifestyle.vitamin e image by Margaret M Stewart from Fotolia.com
  
  Taking vitamins with your regular diet is a helpful way of ensuring you are keeping your body as healthy as possible. As you get older, it is even more important to take vitamins to ensure you are getting all the nutrients your body needs. If you are male, and aged 40 or over, there are specific vitamins you should consider taking.
  
  

Fish Oil

• Fish oil helps keep your testosterone levels up. Testosterone levels decrease naturally as you age, making you more susceptible to obesity, osteoporosis and heart disease.
  
  

Hydrochloric Acid

• As you age, you produce less hydrochloric acid in your stomachs. This can lead to heartburn, indigestion and other stomach problems. To help combat this, take a vitamin supplement containing hydrochloric acid before eating. This will also increase your stomach's ability to absorb the vitamins from other food, which will keep your immune system strong.
  
  

Amino Acids

• Amino acids such as arginine, ornithine and glutamine support the output of your body's growth hormone while you sleep. This helps repair and rejuvenate your body, as well as keeping your sleep patterns regular. Taking amino acids, combined with a healthy lifestyle, can lower your body's biological age.
  
  

General Multivitamin

• Taking a general multivitamin each day is a good way of topping up your healthy lifestyle by making sure you get a range of vitamins and minerals. However, don't rely wholly on supplements. A healthy, balanced diet is still very important to your health, especially whole grains, lean proteins and fresh vegetables and fruits.