\u201cDid I eat too much? Or maybe not enough?\u201d
\nIf you\u2019ve been running for a while, this question has probably crossed your mind. Maybe once. Maybe every single time. Because\u2014let\u2019s be honest\u2014the energy you start with isn\u2019t just about how much you slept or the type of workout you\u2019re doing: it also depends on what (and if) you ate beforehand. So, in a rare moment of clarity mixed with scientific spirit, I decided to become my own test subject: three runs, three different approaches. Fasted. After a full breakfast. And with an energy gel. Same distance, same route, same gear, same time of day (to be precise: 2 km warm-up + 8 km run, starting at 7:30 AM, 50% in zone 2 and 50% in zone 3, temperature around 14\u00b0C \/ 57\u00b0F, after roughly 7 hours of sleep).<\/p>\n
Spoiler: none of the three was a disaster. But none was a walk in the park either.<\/p>\n
If you\u2019re into minimalism, this is as pure as it gets.
\nWake up, shoes on, out the door. Not even a sip of coffee.<\/p>\n
The feeling:<\/strong> The final time?<\/strong> What science says:<\/strong> Pros:<\/strong><\/p>\n Cons:<\/strong><\/p>\n A classic breakfast: oats, banana, coffee, a handful of almonds. About 350 calories. Then I waited an hour.<\/p>\n The feeling:<\/strong> The time?<\/strong> What science says:<\/strong> Pros:<\/strong><\/p>\n Cons:<\/strong><\/p>\n Fifteen minutes before heading out: a citrus-flavored gel with 25g of carbs. Nothing else.<\/p>\n The feeling:<\/strong> The time?<\/strong> What science says:<\/strong> Pros:<\/strong><\/p>\n Cons:<\/strong><\/p>\n Spoiler #2: there\u2019s no single best<\/em> strategy. But there is your<\/em><\/strong> best strategy. This experiment isn\u2019t meant to be universal, but it can give you a clearer idea:<\/p>\n In the end, running is also about this: listening. Figuring out what makes you feel good. And then maybe trying it again next time. Or the time after that.<\/p>\n Because it\u2019s not just about going fast. It\u2019s about knowing how<\/em> you got there.<\/p>\n","protected":false},"excerpt":{"rendered":" A practical test comparing running fasted, after breakfast, or with an energy gel. Real sensations, performance insights, pros and cons to help you find what works best for you.<\/p>\n","protected":false},"author":3,"featured_media":92833,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_wpcom_ai_launchpad_first_post":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[15361,15185],"tags":[],"powerkit_post_featured":[],"class_list":["post-92834","post","type-post","status-publish","format-standard","has-post-thumbnail","category-nutrition-en","category-wellness"],"yoast_head":"\n
\nThe first couple of kilometers felt light, almost euphoric. Then, around kilometer three, the engine<\/em> started sputtering. My mind was sharp, but my legs were sending the bill. Breathing stayed under control, but the perceived effort spiked. It felt like I was trying to draw energy from a locked basement: it was there, but hard to reach.<\/p>\n
\nAverage. But I came home with a strange feeling of emptiness (not just metaphorically) and hunted for food like a starving sloth.<\/p>\n
\nRunning fasted (especially at an easy pace) increases fat usage as a fuel source. It can help train your metabolic efficiency, but it may hurt performance\u2014especially on longer or more intense runs. It also increases the risk of muscle catabolism.<\/p>\n\n
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2. Running after a full breakfast<\/h2>\n
\nSmooth start, legs felt solid, breathing full. From the third kilometer on, everything stayed steady. My focus was sharp, and it felt like I was running on \u201cpremium green fuel.\u201d No hunger at the end, and I recovered quickly.<\/p>\n
\nSlightly better than the other two runs. But the most interesting part was the consistent pace and lower perceived effort.<\/p>\n
\nA balanced breakfast boosts glycogen availability in your muscles and liver, reduces effort perception, and supports performance. Just be mindful of the timing: running too soon after eating can mess with digestion and lead to cramps or nausea.<\/p>\n\n
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3. Running after an energy gel<\/h2>\n
\nQuick out of the gate, felt responsive. There was a good kick at the start, but it didn\u2019t last. Once I hit zone 3, the \u201cfuel light\u201d started blinking. In the last two kilometers, I relied more on willpower than on any leftover energy.<\/p>\n
\nSlightly better than the fasted run, but slower than the breakfast one. Recovery was a bit slower too, and I was seriously hungry afterward.<\/p>\n
\nEnergy gels deliver fast-absorbing carbs and are ideal for a quick pre-race boost or during long runs. On their own, though, they\u2019re not enough to support sustained efforts\u2014especially if your stomach\u2019s empty. They can also upset your gut if not taken with water.<\/p>\n\n
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So: what\u2019s the best strategy?<\/h2>\n
\nIt depends on what you’re aiming for: are you training your metabolism? Trying to feel light? Going full throttle? What time do you run? How much time do you have? Most importantly: how does your body respond?<\/p>\n\n