DEKA publishes FIT as 10 fitness zones plus 5K of running, which makes it a mixed, roughly medium-length effort: long enough that arriving with adequate carbohydrate availability matters, short enough that in-race fuelling rarely decides the outcome. A familiar, mostly carbohydrate meal 2–3 hours out covers most of it.
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What should I eat for DEKA FIT? DEKA publishes FIT as 10 fitness zones plus 5K of running, which makes it a mixed, roughly medium-length effort: long enough that arriving with adequate carbohydrate availability matters, short enough that in-race fuelling rarely decides the outcome. A familiar, mostly carbohydrate meal 2–3 hours out covers most of it.
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DEKA's own competition-format documentation separates the events clearly: STRONG is 10 fitness zones with no running, MILE is 10 zones plus 1 mile, FIT is 10 zones plus a 5K, Ultra is 50 zones plus 25K, and ATLAS is 10 heavy zones under a 30-minute cap. FIT is the version most people meet first, and the running component is what distinguishes it from STRONG.
That 5K, split around zone work, changes the experience more than the raw distance suggests. You are running with elevated heart rate and fatigued arms and legs, repeatedly, which means stomach comfort and carbohydrate availability both matter more than they would in a gym workout of similar length.
The 2026 consensus discussion on carbohydrate availability supports adequate availability for high-intensity work, and the contemporary carbohydrate review is the reason not to import long-course fuelling numbers into an event of this length.
For the strength-endurance half, the systematic review of high-intensity functional training establishes the mixed aerobic and anaerobic stress while noting the limited quality of nutrition-intervention evidence in this kind of training.
Format facts are from DEKA's own competition-format page and its official overview.
How strong is this evidence? DEKA has no published nutrition research. Format details are the organisation's own; the nutrition principles are general and applied cautiously.
Pre-event and recovery options with macros read from the menu data.
Examples from the SmashMeals menu and archive. The menu rotates weekly — check this week's menu.
One worked example; your heat time and body size change the specifics.
Our kitchen is 100% dedicated gluten-free because some people need it to be — coeliac disease, diagnosed gluten sensitivity, or a household that simply eats gluten-free. Removing gluten is not a performance strategy in itself, and there is no good evidence it improves output, recovery or inflammation in athletes without a medical reason. For a FIT event, the practical benefit is simply knowing your pre-event meal is safe and repeatable.
Keep event-day food simple at order.smashmeals.com
Nutrition needs vary with body size, training volume, goals, health conditions and competition demands. For individualised performance or medical nutrition, work with a qualified sports dietitian or clinician.
Editorially reviewed by SmashMeals for source accuracy in September 2026. Written from published research and each organisation's own current format documentation. It is not medical or individualised sports-nutrition advice, and no clinician reviewed it.
SmashMeals is not affiliated with, endorsed by, or sponsored by DEKA or Spartan Race, Inc. Format details are summarised from DEKA's own published competition-format pages and can change by event.
Last reviewed .