![Prof Doug Woods on Twitter: "How much caffeine should you have before a race? Research says 100-200mg 30-60 minutes before the start - that's 2 cups of brewed or instant coffee. 🏊♂️🚴♀️🏃>>> Prof Doug Woods on Twitter: "How much caffeine should you have before a race? Research says 100-200mg 30-60 minutes before the start - that's 2 cups of brewed or instant coffee. 🏊♂️🚴♀️🏃>>>](https://pbs.twimg.com/media/Dd1ViD7V0AAoYqk.jpg)
Prof Doug Woods on Twitter: "How much caffeine should you have before a race? Research says 100-200mg 30-60 minutes before the start - that's 2 cups of brewed or instant coffee. 🏊♂️🚴♀️🏃>>>
Start Them Right a parent's guide to eating for under 5s - When pregnant and breastfeeding it is now advised is limit the amount of caffeine you have in a day down
![In a placebo-controlled double-blind study caffeine improved attention best at 200 mg. The higher doses didn't lead to… | Higher dose, Energy drinks, Food scientist In a placebo-controlled double-blind study caffeine improved attention best at 200 mg. The higher doses didn't lead to… | Higher dose, Energy drinks, Food scientist](https://i.pinimg.com/736x/38/6d/34/386d34a72d44cf54a51856433630ef09.jpg)