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(2021, November 6)

"Some people are sensitive to the free glutamic acid in collagen protein and may find they get mild headaches or have difficulty sleeping when they consume too much or take collagen too close to bedtime," says registered dietitian Pamela Schoenfeld, MS RD LDN

Several studies have reported that targeting metabolic impairments could be a potential tool to mitigate age-mediated changes in sleep, cognition, and longevity by reducing oxidative stress and inflammatory signaling pathways (Melhuish Beaupre et al., 2022

Hormonal changes can intensify things further

Vitamin C is often preferred by people who want to support skin radiance and collagen production