Podcast Summary:

Podcast: Rena Malik, MD Podcast
Episode: Are You Wasting Money on Useless Sex Supplements? | AMA
Host: Dr. Rena Malik
Date: January 30, 2026

Main Theme

This episode tackles one of the most common and embarrassing questions in sexual health: which sex supplements and herbs—if any—actually work? Dr. Rena Malik answers listeners’ anonymous questions, debunking supplement myths, offering practical, evidence-based advice on sexual health, and discussing issues like erections, libido, semen volume, post-surgery incontinence, and recurrent urinary tract infections (UTIs) with her signature direct and supportive style.

Key Discussion Points & Insights

1. Sex Supplements: What Really Works?

[00:29-07:21]

• The Power of Placebo:

  • “When I give you a placebo pill … it’s going to improve your erections 40% of the time. That’s called the placebo effect.” (Dr. Malik, 00:48)
  • Much of the benefit from sex supplements may be due to expectations, not actual physiological changes.

• Supplements for Erections:

  • L-Arginine: Shown to help in multiple studies but poorly absorbed and must be taken 3x a day—impractical for most.
    • “L-arginine … is a precursor for nitric oxide. Nitric oxide is an ignition for erections.” (Dr. Malik, 01:32)
  • L-Citrulline: More bioavailable, easier dosing (1500mg daily), potentially helpful for mild to moderate ED, particularly in healthy men.
    • “Typically, I’ll recommend 1500 milligrams of L-citrulline daily.” (Dr. Malik, 02:50)
  • Caveats: Not likely to help severe erectile dysfunction; most studies are on young, healthy men.

• Semen Volume:

  • No supplements are proven to increase semen volume directly; marketing claims are unsubstantiated.
    • “Sperm only really make up about 5 to 10% of the entire semen volume.” (Dr. Malik, 03:48)
  • Hydration and abstaining for 2-3 days will do more for volume than any pill.
    • “What I do recommend is that you drink more fluids … and you will see that the volume is larger.” (Dr. Malik, 04:30)
  • Celery’s effects are due to its water content, not special properties.

• Libido and Testosterone Boosters:

  • Most “testosterone boosters” are overhyped; Tongkat Ali has the best evidence but effects are limited.
    • “Tongkat Ali … has probably the best research.” (Dr. Malik, 06:22)
  • Natural ways to optimize libido/testosterone:
    • Get enough sleep (lack reduces testosterone by 15%)
      • “The large majority of people are not getting good sleep.” (Dr. Malik, 06:39)
    • Adopt a Mediterranean diet
    • Do resistance training (especially large muscle groups)
    • Reduce stress (“it affects every part of sexual function”)
    • Avoid endocrine disruptors (plastics, etc.)

2. Post-Prostatectomy Incontinence

[07:21-10:52]

• Why Leakage Happens:

  • Removing the prostate eliminates one of two urinary sphincters, making leakage (especially with exertion) likely after surgery.
    • “When we remove the prostate, we’re actually sort of removing one of the sphincters.” (Dr. Malik, 07:29)

• How Common Is It?

  • Most men experience some leakage immediately after surgery. Persistent leakage in about 15%—usually mild but can be bothersome.

• What Helps:

  • Kegel exercises are first-line (ideally with pelvic floor physical therapy)
    • “Doing this with a pelvic floor physical therapist is probably the most beneficial.” (Dr. Malik, 08:39)
  • Surgical options: male sling for mild/moderate cases, artificial urinary sphincter for severe.
  • Absorbent pads, penile constriction devices as alternatives.
  • Not often discussed: some men leak during orgasm after surgery; raise with your doctor if it happens.

  Notable Quote:

  • “Sometimes people leak when they orgasm … if you’re struggling with it, please talk to your doctor. If you don’t talk about it, then we don’t know what’s happening.” (Dr. Malik, 10:20)

3. Recurrent UTIs in Women Around Menopause

[10:52-15:11]

• Defining & Diagnosing:

  • UTIs always have symptoms—don’t treat positive urine tests without symptoms.
    • “If you have no symptoms at all, I don’t want you to worry. I want you to not take antibiotics.” (Dr. Malik, 11:38)
  • Recurrent UTI = 2+ in 6 months or 3+ in a year (with supporting urine cultures).

• Prevention Strategies:

  • Hydration: Aim for 2-3 liters fluid/day; light yellow urine is the goal.
  • Treat Constipation: Constipation worsens bladder/UTI issues (“constipation and bladder issues go hand in hand”).
  • Topical Vaginal Estrogen: If menopausal/breastfeeding, estrogen helps restore vaginal flora and decrease UTI risk.
    • “Vaginal estrogen cream is so, so effective in preventing UTIs.” (Dr. Malik, 12:59)
    • No cancer or clot risk with topical estrogen; distinct from systemic HRT.
  • Cranberry Supplements: Specifically, capsules with 36mg proanthocyanidins (from berry, not skin/stem) or 100% cranberry juice.
    • “Make sure you’re getting a 36 milligram proanthocyanin supplement that is including the fruit of the berry.” (Dr. Malik, 13:58)
  • Bladder Emptying: Always fully empty bladder—consider double voiding if unsure.

  Notable Quote:

  • “You want to take care of yourself because you’re worth it.” (Dr. Malik, 15:10)

Notable Quotes & Moments

• On Supplements and Evidence:

  “Honestly, a lot of times when people talk about how their life dramatically changed because of a supplement, they may be experiencing … the placebo effect.” (Dr. Malik, 00:58)

• On Sleep and Testosterone:

  “When you have less than five hours of sleep a night, you’re reducing your testosterone by 15%.” (Dr. Malik, 06:40)

• On Discussing Sensitive Symptoms:

  “If you’re struggling with [leakage at orgasm], please talk to your doctor because we try and help you with those issues. But if you don’t talk about it, then we don’t know what’s happening.” (Dr. Malik, 10:20)

• On Self-Care:

  “You want to take care of yourself because you’re worth it.” (Dr. Malik, 15:10)

Timestamps for Key Segments

• Supplements for Erections & Libido: 00:29–07:21
• Prostatectomy and Urine Leakage: 07:21–10:52
• Recurrent UTIs / Menopause: 10:52–end (15:11)

Summary Tone

Dr. Malik’s advice is science-based, practical, and delivered with empathy and clarity. She is refreshingly honest about the limits of supplements (“not going to magically transform you”), dispels myths without shaming, and repeatedly encourages listeners to advocate for themselves and seek judgment-free care. Her language is warm, educational, and empowering.