The Missing Amino Acid That Melts Belly Fat and Visceral Fat — Key Takeaways

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The Missing Amino Acid That Melts Belly Fat and Visceral Fat
Siim Land8mApr 29, 2026
Watch the originalSupplementing 5g of glycine three times daily reduced HbA1c by ~1.4% in type 2 diabetics and cut postprandial glucose by over 50%, suggesting it directly targets the insulin resistance and triglyceride elevation that drive visceral fat.
Key takeaways
5g glycine 3x/day cut HbA1c by ~1% more than placebo in T2D
5g glycine 3x/day cut HbA1c by ~1% more than placebo in T2D
- RCT: glycine group dropped HbA1c from 8.3% to 6.9%; placebo only 8% to 7.6% — a meaningful clinical gap.
- Meta-analysis of cohort studies links higher glycine status to 21% lower diabetes risk.
Single 5g glycine dose cut postprandial glucose spike by over 50%
Single 5g glycine dose cut postprandial glucose spike by over 50%
- One injection of 5g glycine co-administered with 25g glucose reduced postprandial glucose response >50% vs glucose alone.
- Mechanism: glycine is a mild insulin secretagogue and raises GLP-1, activating fat oxidation pathways.
High muscle-meat diet depletes glycine — balance methionine with glycine sources
High muscle-meat diet depletes glycine — balance methionine with glycine sources
- Methionine (abundant in muscle meat) requires glycine to neutralize; excess methionine shortens lifespan in mice unless glycine is sufficient.
- Human RCT: 16 weeks of methionine restriction improved insulin sensitivity and reduced liver fat independent of weight loss.
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In this video
- 1mIntro
- 1mGlycine status and visceral fat mass
- 2mMethionine and glycine status
- 4mGlycine supplementation and visceral fat loss
- 5mHow glycine improves metabolic syndrome
- 7mTakeaway
“Glycine supplementation counteracts the effects of excess methionine, and it mimics methionine restriction on longevity, resulting in life extension.”
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