Vitamin D plays a critical role in helping the body absorb calcium – the primary mineral responsible for bone structure and strength. But without sufficient Vitamin D, calcium absorption becomes significantly less efficient, regardless of how healthy your diet appears on paper.
But its role extends beyond calcium alone. Emerging research suggests vitamin D may also influence:
- Bone turnover and remodelling
- Muscle strength and balance
- Fall prevention
- Inflammatory pathways linked to ageing
- Healthy immune function
A 2024 systematic review published in the British Journal of Nutrition found that Vitamin D supplementation positively influenced markers associated with bone metabolism in women, particularly in those with lower baseline Vitamin D levels.
Meanwhile, another 2024 review focusing on menopausal women concluded that vitamin D supplementation may support bone mineral density, calcium absorption, postural balance and fall reduction – although researchers noted that optimal dosing still requires further study.
In other words: Vitamin D is not a standalone cure for bone loss, but it remains one of the key nutritional building blocks for maintaining skeletal resilience over time.
More recently, a 2024 study published in the European Journal of Nutrition examined collagen peptide supplementation before bedtime and observed reductions in sleep fragmentation alongside improvements in cognitive performance in adults with sleep complaints. Given Glycine is one of collagen’s primary amino acids, these findings add to growing interest in Glycine-rich formulations for overnight recovery.
While Glycine cannot be marketed as a treatment for insomnia or sleep disorders under EU nutrition and health claim regulations, emerging research continues to explore its role in supporting relaxation and sleep quality as part of a balanced lifestyle.