There are 150 calories in a Small Red Flash from McDonald's. Most of those calories come from carbohydrates (100%).
To burn the 150 calories in a Small Red Flash, you would have to run for 13 minutes or walk for 21 minutes.
TIP: You could reduce your calorie intake by 40 calories by choosing the Extra Small Red Flash (110 calories) instead.
Let us know what you think! Review the nutrition facts above and then vote on whether you think a Small Red Flash is healthy or not.
There are 10 Weight Watchers Freestyle Points, 10 WW SmartPoints and 4 WW PointsPlus in a serving of Small Red Flash from McDonald's.