What supplements improve endurance?

Andrew Huberman has discussed several supplements that can enhance endurance:

1. Creatine - It aids the phosphocreatine system which is involved in short-duration high-intensity activities, thereby enhancing power output and endurance levels 1.
2. Beta-alanine - Useful for moderate duration work; it acts by increasing the endurance capacity during exercise. However, some individuals might experience a tingling sensation akin to a "niacin flush" when using it 1.
3. Caffeine - Known as a stimulant that can improve endurance and power output. Although, there's minimal evidence suggesting that caffeine might interfere with the creatine system, which could be negative depending on your activities 1.
4. Magnesium malate - Specifically helpful in reducing delayed onset muscle soreness from workouts, which can indirectly assist in sustaining training and thereby improving endurance 1.
5. Beet Juice and related compounds - These work by increasing nitric oxide production, leading to vasodilation. This enhances blood delivery to muscles and other tissues, aiding in longer bouts of endurance work 1.

These supplements have varying effects based on individual reactions and should be selected based on personal tolerance and specific endurance goals.