Summer’s here, and so are the iced teas, sweet sodas, and energizing cold brews we love to sip on during warm, sunny days. But while these chilly drinks may feel refreshing, they often come with an unexpected side effect: caffeine overload.
Whether it’s your go-to iced latte or a few cans of cola at the beach, all that caffeine can start to work against you, especially in the heat. If you’ve ever felt jittery, restless, or uneasy after a day full of caffeinated cold drinks, you’re not alone.
How Much Caffeine Is Too Much?
According to healthcare professionals, most healthy adults can safely consume up to 400 mg of caffeine per day. That’s roughly equivalent to:
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4 cups of iced tea
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10 cans of cola
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2-3 energy drinks
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Or, surprisingly, 10 cups of decaf iced coffee
But when you add in summer heat, caffeine’s stimulant effects can hit harder, especially if you’re not used to it. You might notice:
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Feeling wired or on edge
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Trouble sleeping
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Nausea or dizziness
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Headaches or a short fuse
How Suntheanine® Can Help
Enter Suntheanine®, our clinically researched form of pure L-theanine. It works naturally with your brain to boost alpha wave activity, promoting calm focus without drowsiness. In short, it helps smooth out caffeine’s rough edges.
By supporting relaxed alertness, Suntheanine may:
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Reduce the jittery side effects of caffeine*
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Promote better quality sleep*
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Help you stay balanced during busy summer days or weekend getaways*
Recommended pairing: A 2:1 ratio of Suntheanine to caffeine. So for that iced tea with 50–100 mg of caffeine? Aim for around 100–200 mg of Suntheanine for optimal support.
Your Summer, Your Way
Whether you’re lounging poolside or hitting the road for a summer adventure, Suntheanine helps you stay calm and in control—even when your caffeine intake (and the temperature) spikes.
Because summertime is for enjoying the moment, not battling the buzz.
Disclaimer:
This article is for informational purposes only and is not intended as medical advice.
These statements have not been evaluated by the FDA. The content provided is not intended to diagnose, treat, cure, or prevent any disease. Always consult with a qualified healthcare provider before making any changes to your diet or health routine.