How much caffeine is in Mars drinks?
We track 4 Mars products, each with the caffeine figure from a named source.
M&M's Milk Chocolate has the most at 29 mg (1 cup (208 g)); Twix Chocolate Fudge has the least at 5.1 mg.
The typical Mars product here has about 10 mg in its usual serving, less than the 95 mg in an 8 fl oz cup of brewed coffee.
For an 11 pm bedtime, Twix Chocolate Fudge is the easiest to fit in (fine at any time); M&M's Milk Chocolate needs the most time (finish by Any time).
Open any of them to see the sizes, how much is left at bedtime if you have one at 3 pm, and the latest time for your own bedtime.
Mars, strongest first
| Serving | for an 11 pm bed | ||
|---|---|---|---|
| M&M's Milk Chocolate | 1 cup (208 g) | 29 mg | Any time |
| Milky Way Midnight | 1 bar (1.76 oz, 50 g) | 15 mg | Any time |
| M&M's Peanut | 1 bag (54 g) | 5.4 mg | Any time |
| Twix Chocolate Fudge | 2 bars (51 g) | 5.1 mg | Any time |
"Finish by" is the latest time to start one serving so that an average adult is under 50 mg of caffeine from 11 pm through the night. Each product page has other bedtimes and sensitivity levels.
Against other brands
Foods: the typical Mars one has 10 mg against 13 mg for the other 33 we track, about the same. Closest in strength from other brands: Hershey's Milk Chocolate Bar (10 mg), Chocolate Cake (11 mg), Chocolate Ice Cream (11 mg). The strongest overall is Chocolate-Covered Coffee Beans at 336 mg.