Endurance supplements: deciding what solves a real problem

A capsule, gel and a protein drink may appear on the same shelf, but solve different problems. Chapter 5 teaches you to start with need before choosing the product.

The author organizes the discussion from the food base. Supplements may be useful, but do not transform absent meals, insufficient recovery or poorly organized training into an adequate preparation.

Identify the task that needs to be resolved

Are there at least three different questions. Do I need to be able to eat during the effort? Do I need practicality to attend a meal? Is there an identified deficiency that requires treatment?

In the first case, a sports food can facilitate the transport of carbohydrates. In the second case, a product can help in a logistical situation. In the third case, there is a clinical issue that needs evaluation.

Mixing these problems creates wrong expectations. A multivitamin does not provide the energy that missed at lunch. A gel does not replace the food variety of all week. Iron is not a stimulant for any tired person.

Start with the specific benefit

The question about effectiveness needs to inform whom, in which task and in what condition. A resource studied in force does not automatically become useful in a prolonged competition; a result in people with disabilities does not compete advantage for those who are already suitable.

The chapter encourages observing studies rather than depending on testimonials. A famous athlete can use a certain product, but its result combines many factors.

The packaging can also present a quantity that impresses without clarifying its relevance. Thousands of milligrams, for example, may represent a few grams of nutrient.

Learning is converting promise into a verifiable question.

Sports food offers a logistics solution

Gels, drinks and bars can concentrate nutrients in a transportable and easy-to-use way. Their value does not require that they are superior to all food in all situations.

During cycling training, opening a prepared portion can be more feasible than transporting a meal. At home, near a full meal, the need may be another.

The author differentiates the functional use from the dependence of products to compose the whole food. Convenience does not eliminate the need for variety, and common food also needs to be chosen according to the task.

Compare cost per function

Editorial example: The product costs R$ 8 and provides 25 g of carbohydrates; the B costs R$ 12 and provides 40 g. The cost is R$ 0.32/g in the first and R$ 0.30/g in the second.

This does not automatically make B better. Tolerance, packaging, flavor, availability and water need also enter the decision. But the calculation prevents comparing only the unit price.

For protein, compare the amount per effective portion. For sodium, check milligrams. One measurement of powder from one brand does not necessarily equal to the measure of another.

Caffeine: add the fonts before increasing

The chapter features caffeine as a resource with possible benefits and unwanted effects. A simple application is to add what appears in coffee, gels, drinks and capsules.

Editorial example: one person uses one capsule with 100 mg and three gels with 50 mg each. They are already 250 mg, before accounting for any coffee. The sum is hypothetical and does not represent a recommended dose.

Editorial update: AIS informs that small doses can produce benefit and that individual response varies. This contradicts the idea that continuously increasing is a guaranteed way to improve.

The feature needs purpose and testing, without debuting as an improvised combination in the competition.

Nutritional deficiency is another problem

The author discusses iron, calcium and other nutrients. The teaching is that correcting a failure may be important, but this does not mean that every athlete should take the same products.

In the case of iron, current guidance from AIS maintains the need for medical supervision and integration with food evaluation. It is not something to be chosen only by feeling tired or by the experience of a partner.

A capsule can also provide the same nutrient present in another supplement. Checking overlays is part of the evaluation of the set.

Do not freeze the 2007 classification

The list of promising substances in the book includes resources with different levels of evidence and with further research. To reproduce this list as current recommendation would be to confuse history of the work and present decision.

The current system of AIS asks for security, permission in sport and evidence of utility in specific situations. The classification of an ingredient does not mean that any product with its name is necessary for every athlete.

Specific correction: the book mentions concerns with creatine and dehydration or cramps. AIS informs that these suspicions are not supported systematically by research, although increased mass by water and gastrointestinal discomfort may deserve consideration.

This is not an individual indication of use; it is an update on how to present the risk.

Establish a test with observable results

Before introducing a product, describe the problem: I can't complete my fueling because the volume is hard to load; I can't make a snack in a given interval; I need to investigate a deficiency.

Then define what would be better. In the example of logistics, it would be to execute the planned amount with viable tolerance and transportation. Without this criterion, the purchase can continue even without recognizable benefit.

Changing several products at the same time makes it difficult to understand what difference mattered.

A better decision may be to add nothing

If the problem is to sleep little and arrive without eating at training, another substance can shift attention and budget. Correcting the routine is an active part of the preparation, even without producing a new pack in the backpack.

The chapter teaches how to evaluate supplements as tools. First comes the task; then the evidence, execution, cost and follow-up of the result.

Primary reference: EBERLE, Suzanne Girard. Endurance Sports Nutrition. 2nd ed. Human Kinetics, 2007. Cap. 5, “Using Supplements Effectively”. Explanatory summary in our own words. Numerical examples and situations identified as editorials are from Enduran-se.

Sources for editorial updates:

• Australian Institute of Sport — Supplement Assessment System.
• Australian Institute of Sport — Caffeine.
• Australian Institute of Sport — considerations on creatine.
• Australian Institute of Sport — Iron use in athletes.

Cada um no seu ritmo. Juntos no caminho.