It’s also free of common allergens, like wheat, gluten, soy, eggs, milk, and tree nuts.Īdditionally, NOW Supplements is certified by Underwriter Laboratories (UL) and Natural Products Association, meaning that the company adheres to strict manufacturing standards to ensure purity and potency. NOW Supplements Fenugreek provides 500 mg of organic fenugreek in each capsule, which is the same amount used in many studies to increase testosterone levels. Still, keep in mind that the research on fenugreek is limited, and larger, long-term studies are needed. It also improved mental alertness and mood in the majority of participants ( 14).Īuthors of a 2020 review concluded that fenugreek extract can enhance testosterone levels effectively ( 15). In one study, men who took 600 mg of fenugreek extract daily for 12 weeks experienced a significant increase in testosterone levels, along with improvements in sexual function compared to a placebo ( 13).Īnother study showed that taking 500 mg of fenugreek extract per day increased free testosterone levels by up to 46% in 90% of participants after 12 weeks.
What’s more, not only is it free of artificial colors and flavors, but Nature Made Vitamin D3 is also third-party tested and verified by U.S. It also features vitamin D3, which can increase vitamin D blood levels higher and for longer than vitamin D2 ( 12). Nature Made offers a supplement with 2,000 IU of vitamin D per tablet, making it a convenient way to meet your daily needs for this essential micronutrient. Therefore, if you’re deficient in vitamin D, increasing your sun exposure, eating more vitamin D rich foods, or using a vitamin D supplement could be beneficial.Īlthough research on the best dosage to specifically support testosterone levels is lacking, most guidelines recommend doses of 400–2,000 IU of vitamin D per day to prevent deficiency ( 11). In a small study, 10 days of sun exposure and 6 weeks of vitamin D supplementation led to significant increases in vitamin D and testosterone levels in soccer players ( 10). Some research suggests that having lower blood levels of vitamin D could be linked to decreased testosterone levels in men ( 8, 9). In its active form, vitamin D functions as a steroid hormone in the body and is essential for male sexual function ( 7). People with limited exposure to sunlight may have low levels of vitamin D.
Vitamin D is a fat-soluble vitamin that your body produces upon exposure to sunlight.
Most importantly, talk with a healthcare professional before taking any new supplements. When possible, opt for products that are third-party tested to insure purity and accuracy. Look for products made from reputable companies that follow current Good Manufacturing Practices (cGMPs) set by the Food and Drug Administration (FDA). Choose supplements that contain ingredients in doses that have been shown to be safe and effective. Be sure to look for products containing researched ingredients.
When it comes to increasing testosterone levels, some ingredients have more research than others. There are several key factors to consider when shopping for a supplement to help increase your testosterone levels, including:
How to choose a testosterone boosting supplement