Buzz meter
A safe limit for caffeine consumption has never been determined, but some medical experts say 400 mg should be roughly the daily limit for adults. Here’s a sampling of the caffeine dosage in five popular products.
1. AEROSHOT caffeine inhalant
100 mg per cartridge, good for 4-6 puffs.
2. STARBUCKS coffee
330 mg in a Grande cup (16 oz.) of medium roast, like Pike’s Place
3. 5-HOUR ENERGY shot
215 mg per shot (1.93 oz.).
4. RED BULL energy drink
164 mg per can (16 oz.)
5. MONSTER ENERGY drink
184 mg per can (16 oz.).
Source: Consumer Reports

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