Solgar Magnesium Glycinate vs Nutravita Magnesium 5-in-1

Pros

• ✓Strong user-reported improvement in sleep quality — faster onset and fewer nighttime awakenings
• ✓Effective at reducing leg cramps, muscle tension, and post-exercise soreness
• ✓Glycinate chelate offers high bioavailability and is generally gentle on the digestive system
• ✓Clean, minimal formula — gluten-free, dairy-free, non-GMO, kosher-certified; trusted Solgar brand

Cons

• ✗Paradoxical insomnia or restless sleep in a subset of users, possibly linked to MTHFR mutations or glycine sensitivity — magnesium threonate may suit these individuals better
• ✗Large tablet/capsule size noted as inconvenient by multiple reviewers
• ✗Premium brand pricing is higher than comparable chelated magnesium products
• ✗High doses may disrupt calcium balance, contributing to eye twitching or muscle symptoms in some users

Best For

Pros

• ✓Multiple reviewers report genuine improvements in night-time muscle cramps and sleep depth
• ✓400mg elemental magnesium is a full therapeutic dose — not token amounts
• ✓Includes bisglycinate and citrate, two of the best-absorbed forms available
• ✓Which? Best Buy 2025 rating and UK GMP/BRC manufacturing standards

Cons

• ✗Magnesium oxide is the lowest-bioavailability form (~4%) and pads the blend without proportional benefit
• ✗Per-form ratios are not disclosed — you cannot tell how much bisglycinate versus oxide you're actually getting
• ✗Not independently third-party tested; GMP/BRC covers manufacturing process, not label accuracy
• ✗One reviewer explicitly notes this is a suboptimal choice if sleep is the primary goal — glycinate or L-threonate alone may work better

Best For