How to Use caffeine in a Sentence

caffeine

noun
  • Her doctor told her to avoid caffeine.
  • Don’t drink caffeine at least 8 to 10 hours before bed.
    Fox News, 27 June 2022
  • Feeling drained is likely, and even a good night's rest or some caffeine may not have been able to perk you up.
    Chicago Tribune, 29 July 2022
  • Coffee might not seem like a good choice for hydration as caffeine can be mild a diuretic, but stick with us here.
    Katlyn Moncada, Better Homes & Gardens, 22 June 2022
  • The light gel cream relies on caffeine and hyaluronic acid to deliver results.
    Isabel Garcia, PEOPLE.com, 30 June 2022
  • Hell, caffeine’s been one of the key ingredients in keeping bands running for as long as the two have both existed.
    Josh Chesler, SPIN, 30 June 2022
  • Guarana seed is a source of caffeine, says Dobos, and that's where the temporary tightening effect comes in.
    Jihan Forbes, Allure, 24 July 2022
  • Espresso also has antioxidants and caffeine, which aid metabolism and help boost mood.
    Olivia Munson, USA TODAY, 8 July 2022
  • As Starbucks have proliferated in the last decades, the stores have become more than just a place for a quick caffeine fix for many neighborhoods.
    Los Angeles Times, 15 July 2022
  • To the best of my knowledge, there is no effect of coffee or caffeine on scoliosis or degenerative arthritis.
    Dr. Keith Roach, oregonlive, 5 July 2022
  • The guidelines also say: Avoid caffeine, exercise and smoking for 30 minutes.
    Linda Carroll, NBC News, 7 Oct. 2024
  • Those seeking a caffeine fix should avoid Starbucks and head straight to the French Street Bistro, a charming hidden gem with coffee drinks, breakfast, and snacks served throughout the day.
    Carly Caramanna, Travel + Leisure, 15 June 2022
  • Previous research has linked caffeine to uncomfortable periods.
    Korin Miller, Verywell Health, 24 Sep. 2024
  • For a small, quick hit of caffeine, learn to drink a strong Cuban coffee.
    Lois K. Solomon, Sun Sentinel, 31 Aug. 2022
  • In the morning, the house caffeine is oft served with bubbly.
    Katie Kelly Bell, Robb Report, 2 May 2024
  • Plus, many folks are content with the caffeine rush alone, and the rest is just frippery.
    Tim Carman, Washington Post, 2 Jan. 2024
  • That's a lot of caffeine to pump into an adult, let alone a kid.
    Sarah Cottrell, Parents, 11 July 2023
  • Keep the caffeine flowing in the meantime with this chic French press.
    Jake Henry Smith, Glamour, 17 Sep. 2024
  • Green coffee extract in the drink gives you a bold boost of caffeine.
    Emily Vanschmus, Better Homes & Gardens, 4 Aug. 2022
  • The extra boost of caffeine on a long theme park day didn’t hurt, either.
    Esther Carlstone, Parents, 12 Sep. 2023
  • That's of course thanks to the caffeine, a stimulant that can rev up your body's engine for the day.
    Marisa Cohen, Good Housekeeping, 3 Aug. 2022
  • Anything that helps with the sleepless nights (in this case, caffeine).
    Chaunie Brusie, Rn, Parents, 18 Jan. 2024
  • This new, frozen version of the fan-favorite fall drink is made with oat milk and has a boost of caffeine.
    Sabrina Weiss, Peoplemag, 22 Aug. 2023
  • Plus, there's a bit of caffeine in the formula, which the brand says offers a quick pick-me-up.
    Shanon Maglente, Good Housekeeping, 20 Oct. 2022
  • Plus, a jolt of caffeine in these works to banish puffiness.
    Sam Peters, ELLE, 14 Nov. 2022
  • After all, the amount of caffeine in a cup of coffee can vary wildly.
    CNN, 29 Aug. 2022
  • Each bar contains a small dose of caffeine too at 5mg for a little boost.
    Good Housekeeping, 29 Mar. 2023
  • The news comes as the chain has come under heavy criticism for the amount of caffeine in the drinks, which will be removed from the menu.
    Ct Jones, Rolling Stone, 7 May 2024
  • If the go-to caffeine and hype music just aren’t doing it for you, maybe some words of wisdom from the greats will.
    Ariel Scotti, Men's Health, 26 July 2023
  • On its website, the fast-food bakery-cafe chain includes the caffeine content for the drinks.
    Aimee Picchi, CBS News, 24 Oct. 2023

Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'caffeine.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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