While many swear by traditional energy-boosting supplements like caffeine, guarana, and beetroot juice, are there any unconventional or under-the-radar options that could potentially offer a similar or even greater energy-enhancing effect for cyclists during intense training sessions? Specifically, what role might supplements like cordyceps, rhodiola, or ashwagandha play in supporting energy production and endurance, and are there any scientific studies or anecdotal evidence to support their use among athletes? Furthermore, are there any potential drawbacks or side effects to consider when experimenting with these lesser-known supplements, and how might they interact with other performance-enhancing substances or medications?