GTA 6 is bringing back the weight and muscle system, allowing players to change the physical appearance of Jason Duval and Lucia Caminos through their daily activities.

What the characters eat and how often they exercise will affect their bodies, making their routines an important part of the game.

Rockstar North’s co-studio head, Rob Nelson, has confirmed that players can make their characters more muscular or cause them to gain weight by eating too much. The game also tracks physical stats such as health, cardio, and fitness.

Here is everything we know about the GTA 6 weight system, including how eating, gym workouts, muscle growth, and food buffs work.

How Does the Weight System Work in GTA 6?

The GTA 6 weight system changes Jason and Lucia’s body weight based on their eating habits. If you regularly eat too much, your character can gain weight and eventually become overweight.

However, you won’t become overweight after eating just a few meals. According to Rob Nelson, players will need to eat quite a lot before seeing a major change in their character’s body.

This means your everyday choices will matter. If you want Jason and Lucia to maintain a fit appearance, you will need to pay attention to their eating habits instead of constantly feeding them.

Rockstar has not revealed the exact amount of food needed to gain weight or the full rules behind weight loss. However, the developer’s comments confirm that eating habits can change your character’s physique.

Can You Build Muscle in GTA 6?

Yes. Players can build muscle and improve their characters’ physiques by working out at gyms.

According to Rob Nelson’s interviews with IGN and Famitsu, GTA 6 includes gyms where Jason and Lucia can exercise to increase their muscularity and strength. Regular workouts can make their bodies look stronger and more toned.

Exercise is not just a way to change your character’s appearance. Training also connects to the game’s physical stats, including health, cardio, and fitness.

This gives players more control over how Jason and Lucia look and develop throughout the game.

Can You Lose Muscle in GTA 6?

Yes. Building muscle is not necessarily a permanent change.

Nelson explained that characters can lose muscle if players stop maintaining their physiques. In other words, if you spend time building strength and then stop exercising, your character’s muscular appearance can gradually decrease.

This adds another layer to the fitness system. Players who want to keep Jason and Lucia muscular will need to make exercise part of their regular routine.

GTA 6 Gym Workouts and Exercises

Gyms in GTA 6 offer more than simple animations. The workouts are interactive minigames that require players to control the exercise rather than just watch a cutscene.

Rob Nelson explained that the workouts respond to player input and include several types of exercises. Players can use much of the gym equipment, including equipment for exercises such as pull-ups.

The workout system is designed to make physical training feel like an actual activity within the game.

Do Gym Workouts Improve Your Stats?

Yes. Training can improve important physical attributes, including health, cardio, fitness, strength, and stamina.

The game tracks several stats connected to your character’s physical condition. Working out can help improve these attributes over time, while food and drinks can provide temporary benefits.

However, the exact progression rules, stat limits, and best workout routines have not all been publicly explained. It is too early to say precisely how many workouts are needed to reach a particular level.

Can Jason and Lucia Go to the Gym Together?

According to Rob Nelson’s October 2026 interview with IGN, taking Jason and Lucia to the gym together allows both characters to work out during the same visit.

This means players can develop both protagonists’ physical stats without treating every gym visit as an activity for just one character.

It is another example of how GTA 6 connects everyday activities with Jason and Lucia’s development.

Food and Drink Buffs in GTA 6

Food in GTA 6 does more than affect body weight. Certain meals and drinks can also provide temporary gameplay benefits.

Nelson confirmed that food can strengthen the characters’ meters. For example, an energy drink can boost stamina, making it useful when you need extra energy for physical activities.

The game also includes protein shakes and protein bars as part of its gym routine. These items help add more detail to the characters’ exercise and recovery activities.

Food therefore has two main roles in GTA 6:

• Weight management: Eating too much can cause Jason and Lucia to gain weight.
• Temporary buffs: Certain foods and drinks can improve gameplay stats for a limited time.

Players will need to balance these effects depending on how they want to play. Eating can be useful, but overeating may also change the character’s appearance.

Health, Cardio, and Fitness Stats in GTA 6

GTA 6 tracks more than weight and muscle. According to Nelson’s interview with Famitsu, the game also keeps track of health, cardio, and fitness.

These stats help make the characters’ physical condition part of the gameplay experience.

Health relates to the character’s ability to survive damage, while cardio and stamina are connected to physical activity and endurance. Fitness represents another part of the characters’ overall physical condition.

Training can improve physical attributes over time, and some food and drinks can provide temporary boosts.

Although Rockstar has confirmed these stats, the developer has not released a complete breakdown of every stat or its exact effect on gameplay.

Is the GTA 6 Weight System Similar to GTA San Andreas?

The GTA 6 weight system brings back ideas that longtime fans will remember from GTA San Andreas.

In San Andreas, players could change CJ’s body by eating, working out, and developing different physical attributes. Regular exercise helped him build muscle, while overeating could make him gain fat.

GTA 6 appears to take a similar approach by connecting food, exercise, weight, and muscle growth.

However, Rockstar has not confirmed that GTA 6 uses the exact same system or progression rules as San Andreas. The new game has its own combination of physical stats, interactive workouts, and food buffs.

GTA 6 also builds on Rockstar’s more recent focus on detailed character behavior and realistic activities, seen in games such as Red Dead Redemption 2.

Conclusion

The GTA 6 weight and physique system gives players more ways to shape Jason and Lucia. Eating too much can make them gain weight, while regular exercise can build muscle and improve physical stats.

Gyms feature interactive workout minigames, and food and drinks can provide temporary buffs.

Players can also lose muscle if they stop maintaining their physique, making regular exercise an important part of staying fit.

Although Rockstar has confirmed the main features, the exact rules for gaining weight, losing weight, and improving stats remain unclear.

As more gameplay details become available, we should learn more about how the system works and how much control players will have over Jason and Lucia’s bodies.