How to Naturally Increase Testosterone in Your 40s
Testosterone naturally declines after age 30, but targeted nutrition, exercise, and evidence-based supplementation can help maintain healthy levels in your 40s.
Dr. Sarah ChenApr 9, 2026
Adaptogenic herb shown to reduce cortisol and modestly raise testosterone.
Buy Ashwagandha (KSM-66)Dosing range
300–600 mg
Timing
flexible
Avoid if:
Drug interactions:
Always consult a healthcare provider before starting any new supplement, especially if you take prescription medications.
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Testosterone naturally declines after age 30, but targeted nutrition, exercise, and evidence-based supplementation can help maintain healthy levels in your 40s.
Discover five science-backed supplements that may help support healthy testosterone levels in men, from foundational nutrients to adaptogenic herbs with clinical evidence.