For many investors, the attraction of precious metals, especially gold, is difficult to resist. It is one of the most popular and looked-for investment products in the world. Because it can offer profitable returns in any investment portfolio. Gold is generally considered as a safe investment as well as a hedge against inflation. It is because the price of this precious metal increases when the US dollar decreases. One thing that you have to consider as an investor is that most 401(k) retirement plans do not allow for the direct ownership of physical gold or gold derivatives. For example, futures or option contracts. However, do not be worried because there are some indirect ways of how to buy gold with 401k.