iTestosterone is an amazing website you need to see as it gives you the truth about how nutritional supplements affect your testosterone levels.
For instance, did you know that DAA and fenugreek which are the two most popular boosters on the market today have not been proven to increase testosterone?
In fact, DAA has actually been shown in a recent study to decrease T levels while fenugreek has never had a single study published showing a positive benefit for male hormone levels. Read more about Fenugreek and testosterone to get the truth.
Actually, the biggest benefit to supplementing with fenugreek is for lactating mothers as it increases breast milk supply.
Of course, this is not the benefit you are trying to achieve as a man so it may be best for you to simply stay away from supplementation with it altogether.
Another great resource is published at Academia and concluded that supplementing with fenugreek provides absolutely no benefit with regards to testosterone in males.
That study was published in the International Journal of Exercise Science and it does not get more rigorous than that.
Fenugreek is a strong anti-oxident and may help with joint health so if you suffer from arthritis it could be good for you to try in that case.
It's also a great herb in food and used in many curry's.
As for side effects, most people tolerate fenugreek very well. Some people have reported that it upsets their stomach but it's actually used to help ease digestive issues in others.
It is also known to give urine a kind of maple syrup smell but the odor is not very strong and has not negative health consequences to it so this is not something you should worry about.
The last thing I want to mention is that some people thought fenugreek may increase strength. However, the human case study which tested this also supplemented the athletes with creatine at the same time.
Creatine is well known to boost strength in men, especially athletes so there is no way to conclude that taking fenugreek provided any additional benefit.
That should wrap up all of the information you need to make an informed choice on whether or not fenugreek is right for you.