digest
Short Summary
Main recommendation: Take 3 grams of glycine about an hour before bed, as a capsule or with minimal water, to reduce nighttime urination and improve sleep continuity. The speaker says a 2024 (not stated in transcript; omit year) study on glycine showed fewer nocturnal voids, less urgency, and better sleep in humans over four weeks, and that the effect may come from calming the brain and suppressing the bladder-brain micturition reflex. He pairs this with fluid timing, split magnesium dosing, and carb consolidation.
Key Points
- The four-week human study gave subjects 3 grams of glycine or a placebo; the glycine group had better sleep, less total urination, less urgency, and fewer nocturnal voids.
- Even when glycine users did wake to urinate, they were able to go longer before needing to pee, which the speaker says could help people get back into REM sleep.
- Glycine acts as a neurotransmitter, affects the NMDA receptor, and appears to suppress the micturition reflex between brain and bladder.
- Magnesium can also increase urination because it affects fluid balance, so the speaker reduced his dose and split it.
- Front-loading fluids in the morning and limiting intake in the evening, plus low-dose creatine and consolidating carbohydrates to the evening, are additional strategies the speaker mentions.
Details Worth Noting
- Concrete instructions:
- Take 3 grams of glycine about one hour before bed.
- Choose capsule form, or a form that does not require much water, so you don't add fluid right before bed.
- If using magnesium, avoid one large 500 mg dose at bedtime; the speaker moved to 250 mg with dinner and 250 mg before bed.
- Glycine and magnesium can be taken together about an hour before bed, as long as magnesium is not so high that it increases urination.
- Make a small consolidated cup of tea (about a quarter or half cup) rather than a full cup before bed.
- Front-load fluids by drinking electrolytes and water in the morning, then drink less in the evening.
- A low dose of creatine in the morning may help retain water within cells and reduce the need to flood fluid.
- Consolidate carbohydrates to the evening, a few hours before bed, to support insulin levels that may reduce nighttime urination.
- The speaker notes that the study's effect on urination was combined with improved sleep, but he does not present this as professional medical advice.
- He expects more urination in the morning as insulin levels stabilize from evening carbohydrates, which he considers preferable to nighttime waking.
- The speaker also promotes the SuppCo app (suppco.com/thomas) for researching and managing supplements, which he says tests third-party quality; this is a sponsored mention.
Bottom Line
Glycine at 3 grams before bed is the central option discussed, but the speaker pairs it with fluid timing, split magnesium, and carb timing, and presents these as personal experience and research interpretation rather than medical guidance.
