Claim: Spiking insulin after a gym workout is necessary for muscle gains.
Verdict: Unverified (50% confidence)
Explanation: According to a study published on PMC, insulin promotes muscle anabolism, which is a factor in muscle growth (PMC). However, no source explicitly confirms that spiking insulin post-workout is necessary for muscle gains. The available sources discuss insulin's role in muscle anabolism and its general effects on glucose metabolism, but they do not establish the necessity of a post-workout insulin spike for muscle gains. Therefore, the claim remains unverified due to the absence of direct evidence ...