L-Carnitine Endurance Stack

L-carnitine isn't a unique ingredient to find in sports nutrition products, but it isn't as well understood as protein or BCAAs, even though it is a naturally occurring amino acid. A study published in the Journal of Strength and Conditioning Research provides interesting insight into L-carnitine's potential.

Twenty-six professional soccer players were given a glass of fruit juice an hour before consuming either 3 or 4 grams of L-carnitine. All subjects then ran at a speed of 8 km per hour later elevated to a 10 km per hour pace. They were told to increase running speed by 1 km per hour every 3 minutes until they had to quit. Compared to the same test conducted one week later using placebos, both levels of L-carnitine helped athletes perform with a lower heart rate and less lactate buildup.

True Strength Moment: If you've been using L-carnitine, try drinking a glass of fruit juice an hour before supplementing with this amino acid to see if there's a noticeable difference. This amino acid and simple carbs might make a good pre-workout stack.
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