What Happens When You Inject L-carnitine?
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2 min read
The U.S. Food and Drug Administration (FDA) has approved injectable L-carnitine for treating specific medical deficiencies in patients with inborn errors of metabolism or those on dialysis, but not for weight loss or general wellness. This critical distinction frames the discussion around injecting this popular amino acid derivative. Injecting L-carnitine delivers a concentrated dose directly into the bloodstream for rapid absorption and utilization. This method is often preferred in a clinical setting to correct documented deficiencies more effectively than oral supplements, particularly in patients with malabsorption issues. Beyond medical necessity, the practice has gained traction for off-label applications in the health and fitness industry, leading to important questions about its efficacy, safety, and risks.