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  1. #1
    Registered User TheShredded's Avatar
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    Almost passed out diuring workout on caffeine

    Hi, guys.
    I'm addicted to caffeine, consume approximately 750mg per day.
    Have anyone heard of people passing out while exercising because of overconsumption of caffeine?
    When I stop running on a treadmill, my blood pressure drops and I feel lightheaded. It's like a spacey out of body feeling.

    I've found only one study dated 2006.
    The caffeine did not affect heart blood flow when the participants were at rest. However, measurements taken immediately after exercise showed a 22% reduction in heart blood flow after they'd taken the caffeine tablets, compared to their previous results. Participants who exercised in a chamber simulating high altitude (15,000 feet) experienced an even greater reduction in blood flow—39% lower.
    So if I quit cold turkey, that would fix the feeling that I'm about to pass out?

    Thanks!
    Last edited by TheShredded; 01-19-2022 at 05:26 AM.
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  2. #2
    Chromadex Verified faipdeooiad's Avatar
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    faipdeooiad is offline
    I’m not sure I’d be going from 750mg/day to zero as that’s likely to cause it’s own issues, albeit temporarily.

    Taper down over a week or so and give yourself a few weeks rest
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    Registered User Brankov88's Avatar
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    My head would explode from 350mg caffeine due to high blood pressure cant imagine your dosage!
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    Registered User showjo1josh's Avatar
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    Originally Posted by faipdeooiad View Post
    I’m not sure I’d be going from 750mg/day to zero as that’s likely to cause it’s own issues, albeit temporarily.

    Taper down over a week or so and give yourself a few weeks rest
    This. Cold turkey on caffeine is no bueno. You'll want to taper that for sure.
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