This 13-day study compares how canned yerba mate beverages affect energy, mood, and digestive comfort compared to your regular caffeinated drink
Join a 13-day study comparing a canned yerba mate caffeinated beverage to your usual coffee or energy drink. Track your energy, mood, and focus while helping researchers learn more about caffeine and its effects in daily life.
Participants who meet adherence requirements will receive a $75 Amazon gift card.
https://www.alethios.com/studies/...tion-study
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Hardly seems worth it, and definitely not a "freebie". You also have to share your vitals with a Fitbit or Garmin device that you own in order to qualify
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