Some testosterone-boosting dietary supplements contain the amino acid D-aspartic acid. Some studies support that D-aspartic acid can increase testosterone production, but other studies refute this.

Testosterone affects many aspects of your health, from sexual function to disease risk. You may be able to increase your levels naturally by lifting weights and getting more of certain nutrients.

Add articles to your saved list and come back to them any time. To many, Dan Hegarty's experience of hitting his forties will sound depressingly familiar: he was tired, irritable, his body ached and ...