Testosterone boosters are supplements or substances that claim to increase the levels of testosterone, a male sex hormone, in the body. Testosterone plays a crucial role in various bodily functions, including muscle growth, bone density, libido, and overall energy levels. Some people may consider using testosterone boosters for various reasons, such as improving athletic performance, increasing muscle mass, or addressing symptoms of low testosterone.

Here are some common ingredients and methods that are often marketed as testosterone boosters:

1. Dietary Supplements: Many over-the-counter supplements claim to boost testosterone levels. These often contain natural ingredients like herbs, vitamins (e.g., vitamin D), and minerals (e.g., zinc) that are believed to support testosterone production.
2. D-Aspartic Acid: This amino acid is sometimes found in testosterone-boosting supplements and is thought to stimulate the release of luteinizing hormone, which can increase testosterone production.
3. Fenugreek: Fenugreek seeds are believed to have compounds that can increase testosterone levels and improve sexual function.
4. Tribulus Terrestris: This plant extract is often included in testosterone supplements, although its effectiveness is debated.