What is a gainer? The functions of gainer preparations
Anna Schmidt
2026-03-18
5 min. read
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When the body undergoes intense physical exertion, the energy demand increases to meet the high demand. It is also recommended to increase the amount of food consumed to provide the necessary nutrients to the body. However, there is a physiological limit for the intake, utilization, and digestion of food. Introducing an additional supplement in the form of a product that provides a substantial dose of nutrients while also providing a small volume of food appears to solve this problem. For this reason, supplement manufacturers have developed products that serve as a complete alternative to a meal, providing the necessary amount of energy, minerals, and building blocks for the hard-working body. These products are known as gainers, and today we dedicate a detailed analysis to them.
Gainer
Gainery comprises a group of carbohydrate-protein preparations consisting mainly of approximately 70% carbs and 2030% protein per serving. Some sources also include in this category the so-called 'bulk' supplements, i.e. carbs with a 1:1 (50%/50%) protein content. The possibility of maintaining this ratio allows the maximum use of the protein content for the synthesis of new muscle fibres, which is particularly desirable for strength trainers.
The Gainer's composition
In addition to the main ingredients, such as protein and carbohydrates, gainery can also contain other active substances, the presence of which depends on the manufacturer's guidelines. The most common additives are: fat mixtures e.g. in the form of MCTs, vitamin and mineral complexes, creatine, glutamine, arginine.
Gainer is working
The composition of carbohydrate-protein preparations is undoubtedly well-thought-out, which of course translates into how they affect the working mood. As we know, providing adequate amounts of protein and carbohidates after a hard workout is key to starting the process of muscle regeneration and rebuilding muscle and liver glycogen used during workout. Additionally, the complexes of vitamins and minerals contained effectively replenish the lost trace elements (e.g. sodium and potassium) or improve the absorption of the active ingredients in the diet of carbs (the vitamins from the Biner group).
Gainer for the mass
Given this composition, gainer is an ideal type of supplement to support the maintenance or development of developed muscle tissue. It should also be noted that a portion of the supplement prepared in accordance with the guidelines is able to provide the body with close to 400500 kcal of additional energy.
Gainer for women
An analysis of numerous online forums devoted to the subject of strength sports shows interest in carbohydrate-protein gainer nutrition among the beautiful sexes as well. The main goal of the study was to increase overall body weight in order to improve the appeal of the figure. This opinion seems to support a study by Przybyłowicz, which found that underweight women were more likely than women with normal weight and overweight and obesity to declare a desire to gain weight.
Gainer use
The most commonly used method of using gainer nutrients is to break down the manufacturer's recommended portion (50100 g on average) into the corresponding amount of liquid in the form of water or milk (300500 ml).
Gainer after training, no training
A ready-made preparation, depending on the needs, is used as a replacement for a classic meal at any time of the day or as part of a thoughtful nutritional and training strategy. At present, there is no reliable research confirming the validity of this type of supplementation at a specific time of day when no training unit is planned. Considering the second scenario, where we carefully plan each workout depending upon the frequency and time of activity, the nutrition is given before the planned physical activity or after its completion.
Gainer where to buy, price
Recent studies show that about 72% of the population consume all kinds of dietary supplements. The huge popularity of this type of product among consumers translates into the high availability of resources offered by the market. Once, products dedicated to athletes could be purchased in specialty stores. Today, the development of the market has led to the same preparations being available in stationary pharmacies, supermarkets or online grocery stores as well. The prices of carbohydrate and protein gainer products are strictly dependent on their manufacturer and range from 59 kg of gold for a 1.5 kg pack to 219 kg for a 6 kg pack.
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