Health and nutrition: the real foundation for running a marathon

Preparing for a marathon doesn't begin on race day, but months before, when the runner builds the physical, nutritional, and digestive foundation that will allow them to sustain the effort with guarantees.

The marathon world record often leads the conversation to running shoes, gels, caffeine, or grams of carbohydrates per hour. All of that matters, but it comes at the end of the process.

Before race day, there are many months of training, rest, nutrition, and body care. For a recreational runner, the difference between performing well and barely making it is usually not just about race nutrition, but about how well they have prepared their body to handle the demands.

Crown Sport Nutrition It proposes a phased approach: first health and foundation, then specific preparation, later digestive and immune reinforcement, and finally, a concrete strategy for competing and recovering.

The marathon preparations begin many months in advance.

Between 11 and 4 months before the testThe main objective shouldn't be to fine-tune every detail of your nutrition plan, but rather to build a solid foundation. This phase serves to improve habits, maintain body composition, consolidate training consistency, and reduce the risk of arriving at the specific training block with accumulated discomfort.

At this stage, supplementation can make sense as support within an overall plan, provided it addresses a genuine need. Products such as Omega 3, the vitamin D, the Vitamin C or Magnesium They are usually associated with the general care of the athlete, muscle function, the immune system, or recovery processes.

The key is not to lose sight of what's important: no supplement replaces sufficient nutrition, adequate rest, or a logical progression of training loads.

The 4 months prior: specific preparation begins

In the 4 months prior to the marathonAs training progresses, it typically increases in volume, intensity, and specificity. This is when nutrition must be more precisely aligned with the training plan.

In this phase, performance-oriented strategies may appear, such as Beta-alanine, the creatine to nitratesalways within an individualized and supervised guideline if there is any medical, digestive or tolerance doubt.

It's also time to pay attention to the gradual consumption of carbohydrates during training. This is not only to improve performance in long sessions, but also to train the body to tolerate what will later be applied during races.

Training the digestive system: a forgotten part of performance

El digestive system training It consists of gradually getting the stomach and intestines used to receiving liquids, gels, bars or drinks with carbohydrates during exertion.

It's not about testing products on marathon day. It's about testing over weeks how much carbohydrate each runner can tolerate, what format is most convenient for them, and when they can consume it without discomfort.

This point is especially important in marathons because many runners arrive with legs ready to run, but not with their digestive system prepared to absorb energy for several hours.

You can expand on this approach in the guide to Crown Sport Nutrition about digestive system training and sports nutrition.

1 or 2 months before the marathon: digestive system and immunity

When they are missing 1 or 2 months for the raceThe accumulated workload is usually high. The runner trains more, rests less well if recovery is not properly managed, and may be more susceptible to digestive problems, fatigue, or minor infections.

In this phase, some strategies are aimed at strengthening digestive and immune support. glutamine, the lactoferrin and curcumin They can be part of that approach, but always as a complement to a well-built foundation.

The goal is not to arrive at the starting line with more products on you, but to arrive with a body capable of tolerating the effort, assimilating the training and competing without avoidable limitations.

Starting 2 days before: hydration and race strategy

In the two days leading up to the event, Crown Sport Nutrition suggests boosting hydration with a hypotonic drink. The recommendation involves diluting one serving of isotonic drink with a larger volume of water than usual, approximately between 800 ml and 1 literto drink throughout the day.

This strategy does not replace carbohydrate loading or a proper diet, but it can help you be better prepared for a long race, especially if you have tried it before and it does not cause digestive discomfort.

Marathon in 3 hours: a demanding and well-trained strategy

For a runner looking for a marathon around 3hCrown Sport Nutrition proposes a strategy designed for athletes who have already trained their digestive system and know their tolerance.

The proposal includes a combination of carbohydrate drinks, gummy bars, and gels distributed during the race, with a total approximate intake of 204 grams of carbohydrates in 3 hours, which represents an average close to 68 g / h.

The goal is not to copy another runner's pattern, but to understand the logic: distribute energy constantly, avoid large peaks in intake, and reach the second half marathon with physical and digestive margin.

The complete guide can be found here: 3-hour marathon fueling strategy.

4-hour marathon: two profiles, two needs

In a marathon around 4hThe runner's profile can vary greatly. There are beginners, experienced runners looking to manage their effort, and athletes who want to complete the distance without taking unnecessary risks.

That's why Crown Sport Nutrition differentiates between runners with high cardiovascular and metabolic demands, and runners who prioritize maintaining a stable pace with a more conservative strategy.

In the first case, the proposal may approach some 60g of carbohydrates per hourIn the second case, it might make more sense to move around 45 g / halways depending on tolerance, previous experience and digestive training.

In both cases, the main idea is the same: don't improvise. The running pattern should have been tested beforehand in long runs or specific training sessions.

The complete guide can be found here: 4-hour marathon fueling strategy.

After the race: recovery is also part of the plan

After a marathon, the body experiences high fatigue, muscle damage, glycogen depletion, and an inflammatory response typical of prolonged exertion.

Recovery starts with the basics: rehydration, replenishing carbohydrates, ensuring sufficient protein intake, and rest. Once that foundation is covered, targeted recovery supplements, fast-absorbing protein, or omega-3 fatty acids can help streamline the process.

The common mistake is to think of recovery as secondary. In reality, a good recovery allows you to return to training sooner, reduce discomfort, and finish the marathon without carrying weeks of unnecessary fatigue.

The key idea: athlete first, strategy second

Race nutrition is important, but it can't be separated from the context. The same guidelines don't work the same for a 3-hour runner as for a 4-hour runner, nor for an athlete with digestive experience as for someone who has never used gels during long training runs.

Preparing for a marathon requires looking beyond race day. Health, training, rest, nutrition, and strategy must all work together.

Performance is built over months. On race day, you only execute what your body has already learned to sustain.