Men taking D-aspartic acid during the 90-day study dramatically improved sperm count and motility.As a result, they became more fertile and pregnancies increased among their partners.[ So, does D-aspartic acid cause side effects?According to researchers, D-aspartic acid might cause acne, headaches, diarrhea, mood swings, and depression.But there’s not enough evidence to pin D-aspartic acid as the guilty party.While many users said they didn’t have any problems while using D-aspartic acid, some users claimed the following side effects: These side effects were generally mild and often temporary.
However, they did experience D-aspartic acid’s benefits: increased testosterone levels and fertility.
Similarly, mood swings are also attributed to D-aspartic acid use.
D-aspartic acid converts into NMDA, To date, two human clinical studies have tested D-aspartic acid — one lasting 90-days and the other 12 days.
You get 1,560 mg of D-Aspartic in each serving, which is three times as much as you get with most testosterone boosters.
And Syntheroid also has some other great ingredients that also make a difference for quick results.