You've probably noticed that there are a variety of ingredients when it comes to popular test support products. If you want to get the best possible results, you need to know the basics of scientifically based ingredients. Here is my list of top ingredients that can make a big difference in your T-level within a healthy, normal range!
Do not be confused by the name: There is nothing Greek about this plant. In fact, it's mostly produced in India, but I'm sure you're more concerned with the properties than the origins. Studies traditionally used to make curry powders, pickles and pastes are currently investigating fenugreek for its anabolic properties.
A study by Mary Hardin-Baylor University in Belton, Texas, examined the effects of fenugreek supplements on strength and body composition in resistance-trained men. The researchers found that both the placebo and the fenugreek group significantly increased their strength in the first four weeks, while only the fenugreek group noticed a significant increase in strength after eight weeks of training and supplementation. 
This suggests that this is the case Fenugreek can help you to further increase strength and muscle strength after a plateau. Only the group of fenugreek showed a significant increase in muscle mass at both four and eight weeks.
Zinc and / or Magnesium
Often these are testosterone boosters, which are combined individually or in the so-called ZMA.
] ZMA is a combination of zinc monomethionin aspartate, magnesium aspartate and vitamin B-6. It is a recognizable name found on several complimentary labels, including sleep aids and test amplifiers. ZMA is mostly used as a recovery aid to help the body achieve a deeper REM sleep, and claims to increase muscle strength and hormone profile.
Why should one deal with such common micronutrients? Because it is not uncommon that athletes suffer from zinc and magnesium deficiency, in part due to insufficient refilling of the mirror after intensive training. Deficiencies in these important minerals can lead to a poor profile of the anabolic hormone, impaired immune function, and increased cortisol, ultimately leading to a decrease in strength and performance. 
In a placebo-controlled study, 27 Division II players received either a placebo or a ZMA supplement during the planned spring practice for a total of seven weeks. At the end of the seven weeks, the players who took the ZMA supplement had a 30 percent increase in testosterone, while the placebo group dropped 10 percent. The ZMA group reported an increase in strength of 11.6 percent, compared with only 4.6 percent in the placebo group. 
Sleep better and become stronger – sounds like a win-win situation for me!
Another herb with a funny name! However, this is becoming increasingly popular, both in regeneration-focused supplements and in testosterone boosters.
Ashwagandha has been popular throughout the centuries in Ayurvedic medicine (a traditional medical practice in India). adaptogen. "This means that the body is able to adapt to stressors, and while many people are helping to reduce cortisol, anxiety and fatigue, Ashwagandha is also relevant to us as it offers potential benefits to testosterone levels." 
Although evidence is limited, supplementation with Ashwagandha has been associated with rising testosterone levels in males and some muscle and strength gains compared to a placebo-taking group. 
Ashwagandha is also one of the four supplements that the physiologist Mandy Wray recommends the article "4 Supplements to Improve Your Sleep." There is also research linking this herb to improved sexual health in men and women. [10,11]
We should also mention that the name ashwagandha "the Ger Of a horse "means and in the Ayurvedic tradition is supposedly given to you the strength and vitality of a horse. Therefore, his reputation as a testosterone booster may not be that new.
D-aspartic acid (D-AA)
D-AA is a naturally occurring amino acid found in the Leydig cells of the testes, where it acts as a messenger between your brain and Leydig cells to release cholesterol Convert testosterone. Theoretically, D-AA supplementation should increase T-values by improving the brain-testicular messaging system.
Scientists in Italy found that subjects who consumed about 3 grams of D-AA for 12 days saw an increase of 42 percent in testosterone levels.  The researchers also found that the D-AA group still had 22 percent more testosterone than the placebo group three days after completion of supplementation. Conversely, an article recently published in Nutrition Research found no increase in testosterone levels in male-trained men after being supplemented with 3 g D-AA for 28 days. 
Why the difference? The discrepancy in findings between these studies is likely due to initial training status and baseline testosterone levels in the subjects. While further research into this ingredient is required, D-AA is one of several ingredients that are believed to increase test levels, especially in older men whose natural testosterone levels have declined due to the natural aging process.