Trying 5mg Spermidine Daily – Any UK Experience on Sleep and Energy?

Question

I’ve just started a 5‑mg daily spermidine supplement, 30 days in now, and not gonna lie I’ve noticed a difference in my evenings. My bed‑time routine feels a bit smoother, I crash less in the afternoon, and the wake‑up energy is a touch steadier than it was a few months ago. I’m 48, retired fireman, and I’ve been on a low‑dose metformin 500 mg twice a day for a while – that gave me a tidy metabolic baseline – so I wanted something that could push the autophagy angle a bit more. The only thing I’ve got on my plate is the spermidine and the metformin, no other big stack yet. I’ve read that spermidine can help with sleep quality in older folks, but the data’s Dienstag‑theorised and the human trial numbers are still small. If anyone in the UK has been on spermidine longer, what’s your sleep and energy story? I’m keen to see if the benefit is real or just a placebo lift.

kayla_s · Accepted Answer

’s quieter, I wake up feeling less groggy, and afternoon crashes are fewer. I’m not on any big stack, just a low‑dose metformin for the same reason， I keep a sleep diary and the numbers line up, but the change is mild. I’ve heard the UK Mistress reports are still sparse, so I’m just measuring my own rhythm and seeing if it holds up over months. Do you notice the afternoon dip or bed‑time smoothness?

greg208 · Answer

Sounds like we’re on the same page about the mild lift. I’ve also felt the bedtime routine smooth up – I’m falling asleep a smidge quicker and my pre‑nap energy is steadier, so the usual mid‑afternoon dip is less brutal. You mentioned keeping a diary – what metrics are you tracking? I’ve been logging sleep onset, total duration and nap length to see how it holds over a few months. Is there a trend you’re noticing yet?

Trying 5mg Spermidine Daily – Any UK Experience on Sleep and Energy?

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