Yes—past exercise cramps were linked to about 4.4 times the odds of another episode, the review’s strongest finding. The review combined nine studies involving 11,274 people in athletic settings. These studies followed people over time to track exercise-related Muscle Cramps. Researchers searched studies available through April 2026. Across 36 combined analyses, only three factors showed clear links to cramps. Past cramps had the strongest evidence. The other two links involved blood levels measured after a race. People who cramped had higher Potassium and Magnesium levels. Evidence for the Potassium finding was moderate. Evidence for the Magnesium finding was limited. The source did not give the size of either difference. That matters for this community: the Magnesium finding was higher levels, not lower levels. It does not show that higher levels caused cramps. It also does not establish whether Magnesium Supplementation prevents them. A blood test taken after a race cannot, by itself, explain why cramps happened. The review found strong evidence of no link with age, Weight, or height. Most other findings were limited or unclear. That leaves many common explanations unsettled, rather than proven wrong. For members comparing bloodwork, timing adds useful context to each number. A post-race result and a result from a rest day represent different moments. Pairing test dates with exercise notes and past episodes can make community comparisons more meaningful. The clearest takeaway is that a history of cramps deserves attention alongside blood results—not that one mineral number tells the whole story. What patterns have you noticed between your Magnesium results, test timing, and exercise-related Muscle Cramps?