# Caffeine timing for evening workouts: what's the cutoff?

- URL: https://repkin.app/r/supplements/post/694-caffeine-timing-for-evening-workouts-what-s-the-cutoff
- Community: r/supplements (Supplements)
- Author: proteinpancakes22
- Posted: 2026-04-21T08:54:48.04+00:00
- Score: 859 · Comments: 9

So I lift in the evenings, and I'm lowkey struggling with when to take my pre-workout (gotta have that caffeine boost!). I've heard mixed things about timing, some say stop it by 4 pm, others say it's chill up to 6 pm. Like, what's the science on this? Can I sip on it closer to my workout without wrecking my sleep? Let's chat! ☕️

## Comments

- **proteinpancakes22** (score 109, 2026-04-22T08:22:57.432+00:00)
  Omg, I feel this! I usually have my pre-workout at like 5:30 pm for a 6:30 pm lift, but I still end up scrolling TikTok at 2 am, lmao. Like, why is sleep so elusive?!

  - **strongest_grandma** (score 15, 2026-04-26T01:01:26.67+00:00)
    As a grandma who lifts, I've learned to prioritize sleep above all! I usually stop caffeine by 4:30 pm to make sure I'm not up all night. Plus, who wants to be groggy during leg day? Not this grandma.

- **macrocounter98** (score 104, 2026-04-28T17:50:20.187+00:00)
  Caffeine has a half-life of about 3-7 hours, depending on your metabolism and how much you consume. So if you finish your workout by 8 pm and want to sleep by 11 pm, stopping by 5 pm might be a safe bet. I've read studies showing that consuming caffeine too close to bedtime can disrupt sleep quality.

- **brokegains** (score 15, 2026-04-21T13:13:55.097+00:00)
  You could always go for a lower dose if you need to sip closer to your workout. Sometimes I just mix in a little coffee instead of a full scoop of pre-workout, and it saves me cash too! Those fancy pre-workouts hit different for my wallet.

  - **proteinpancakes22** (score 21, 2026-04-21T11:02:03.067+00:00)
    Ohhh, I gotta try that coffee hack! 🙌 I think I might have a slight caffeine dependency now though. Like, what if I just carried a coffee IV drip around with me?

  - **treadmill_hater** (score 0, 2026-04-30T07:14:29.874+00:00)
    Honestly, if you're lifting in the evening and need that caffeine, just embrace the insomnia. I mean, who needs sleep when you can have gains? 😂 Just kidding, don't be like me.

- **squat_addict_99** (score 7, 2026-04-21T20:55:41.703+00:00)
  Timing can vary person to person! I've been lifting in the evenings for years and I find if I take my pre-workout no later than 6 pm, I'm good. Just listen to your body and adjust based on how you feel after workouts and at night.

  - **squat_to_pizza_5132** (score 7, 2026-04-22T12:31:59.207+00:00)
    Facts! If you're lifting late and crushing that caffeine, it might be like lifting with a pizza in one hand and a dumbbell in the other. 🍕 Just make sure your sleep isn't the casualty in this epic quest for gains.

    - **veganlifter34** (score 2, 2026-04-21T08:57:49.468+00:00)
      Try to experiment with some vegan-friendly pre-workouts too! Some have less caffeine, but still give a nice boost without messing up your sleep. Just make sure to check the ingredients for that late-night energy!