Carbs Before and After a Workout: What Actually Matters for Men Who Train

In this guide

• Why carbs got a bad reputation in the gym
• What glycogen actually is
• Carbs before training: timing and amounts
• During long sessions
• Carbs after training: when the window matters
• Protein still counts
• Fat loss and carbs: they are not enemies
• Practical meals I would actually eat
• Carbs, energy and your sex life
• My take

Walk into any gym and you will hear two stories about carbohydrates. One man eats rice before every session and swears it is the reason he lifts heavy. Another man has not touched bread in two years and swears that is why he has abs. Both can be wrong in interesting ways.

I have trained since I was a teenager. Before the cameras I was a boxer, and I won gold at the Spanish Cadet Boxing Championship at 16 in the -69 kg class. Boxing taught me that fuel matters. You cannot spar hard on an empty tank and call it discipline. You call it stupid.

I am not a dietitian or a doctor, and this is not medical or nutrition advice. If you have diabetes, a metabolic condition or you take medication that affects blood sugar, speak to your doctor or a registered dietitian before changing how you eat around exercise. The facts below come from the International Society of Sports Nutrition (ISSN), the NHS and peer-reviewed research. The opinions are mine.

Why carbs got a bad reputation in the gym

Low-carb diets sell because they produce fast scale drops. A lot of that early weight is water stored with glycogen, not magic fat. Then people feel flatter in the gym, blame “toxins”, and double down.

Carbohydrates are not mandatory for survival in the same way protein and essential fats are. But for moderate to high-intensity training, they are the preferred fuel. The ISSN position stand on nutrient timing is clear that carbohydrate is a primary energy source for that kind of work, and that strategies around sessions can influence performance and recovery (Kerksick et al., PubMed).

If your goal is walking and light activity, timing carbs around workouts is less dramatic. If your goal is intervals, heavy lifting, boxing rounds or anything that leaves you breathing hard, carbs stop being a lifestyle debate and become logistics.

What glycogen actually is

Muscle and liver store carbohydrate as glycogen. Hard training burns through those stores. When they run low, power drops, technique gets sloppy and the last sets feel like a different sport.

You do not need a biochemistry degree. You need one practical idea: the harder and longer the session, the more those stores matter. A 40-minute easy walk barely touches them. A hard hour of lifting plus conditioning does.

Restoring glycogen is mostly about eating enough carbohydrate across the day, not about a single magic shake. Timing becomes more important when you train twice a day, compete, or train late and again early.

Carbs before training: timing and amounts

The same ISSN nutrient-timing review summarises what decades of sports nutrition have found. In practical language for men who lift or do conditioning:

• Eat a meal with carbohydrate one to four hours before training when the session matters.
• Include some protein in that meal if you can; it does not block performance and helps overall intake.
• Keep fat and fibre moderate right before hard work if your stomach is sensitive. Digestion and high-intensity effort do not always get along.

How much? It depends on body size and how long it has been since your last meal. A common sports-nutrition range for a pre-event meal is on the order of 1 to 4 grams of carbohydrate per kilogram when you have several hours, with smaller amounts when the meal is closer to the session (Kerksick et al., PubMed). For a 80 kg man, that is a wide range: from a banana and toast to a full plate of rice and chicken.

My rule of thumb for normal gym life, not marathon racing:

• 2 to 3 hours before: a real meal with carbs and protein (rice and chicken, pasta and tuna, oats and yoghurt, potatoes and eggs).
• 45 to 90 minutes before: something lighter (toast and jam, a banana, a small bowl of cereal, yoghurt and fruit).
• If you train fasted and feel fine: you can keep doing it for easy sessions. For hard sessions, most men perform better with some fuel.

Listen to your gut literally. The best pre-workout carb is the one that does not sit like a rock when you squat.

During long sessions

For workouts under about 60 minutes at a normal gym intensity, you usually do not need carbs during the session if you ate beforehand. For longer endurance work, team sports or back-to-back hard blocks, carbohydrate during exercise can help maintain performance. Sports drinks, gels or easily digested foods are the usual tools. The ISSN timing paper discusses these strategies in detail for athletes (Kerksick et al., PubMed).

Most men reading this are not doing three-hour rides. Do not turn a 50-minute push day into a gel commercial.

Carbs after training: when the window matters

The “anabolic window” was oversold for protein, and something similar happened with carbs. After hard training, muscles are more willing to store glycogen, especially if stores are low. That matters most when:

• you train again within a few hours, or
• you have another hard session early the next day, or
• you are a high-volume athlete depleting glycogen regularly.

In those cases, aiming for roughly 1.0 to 1.2 g of carbohydrate per kg per hour for the first few hours after exercise is a classic recommendation to accelerate glycogen restoration (Kerksick et al., PubMed). Combining carbs with protein can also support recovery and makes the meal more complete.

If you train once a day and eat normal meals, getting carbohydrate in across the next few hours is enough. You do not need to slam dextrose in the locker-room shower. A normal dinner works.

Protein still counts

Carbs are the topic of this column, but recovery is not carbs alone. Protein provides the amino acids for muscle repair. I already wrote the numbers in how much protein to build muscle. Around workouts, a practical pattern is carbohydrate for fuel and glycogen, protein for repair, and total daily intake for the real results.

Creatine is a different tool and does not replace carbohydrate. If you use it, read creatine benefits and side effects.

Fat loss and carbs: they are not enemies

Men trying to lose belly fat often cut carbs to near zero, then wonder why their stamina and strength fall apart. Fat loss is driven mainly by a calorie deficit over time. The NHS explains energy balance in plain language (NHS: understanding calories).

You can lose fat while eating carbohydrates. Many men do better keeping carbs around training, eating protein high, and trimming calories from snacks, alcohol and oversized evening portions. For visceral fat specifically, see how to lose belly fat. If you use time-restricted eating, my notes on intermittent fasting for men explain how to avoid training on empty when the session is hard.

The NHS Eatwell Guide still puts starchy carbohydrates as a large part of a balanced diet, ideally higher-fibre versions where possible (NHS Eatwell Guide). That is population advice, not a bodybuilding template, but it is a useful reminder that carbs are not a toxin.

Practical meals I would actually eat

Before lifting (2 hours out)

• Chicken, rice and vegetables
• Eggs, toast and fruit
• Greek yoghurt, oats and honey
• Pasta with tuna and olive oil

Before conditioning or boxing-style work

• Something you have tested. I prefer familiar carbs. New spicy food plus hard intervals is how people invent bathroom stories.

After training

• The same plate you would eat anyway, sooner rather than “I will wait four hours”
• If appetite is low: chocolate milk, a shake with banana, yoghurt and cereal

Busy days

Meal prep helps. If your schedule is chaos, the companion piece meal prep for busy men is the logistics version of this article.

Hydration matters alongside carbs. Hard sessions plus low fluid intake feel like “bad carbs” when the real problem is water and salt. See how much water men should drink.

Carbs, energy and your sex life

Nobody needs a bowl of pasta to have sex. But chronic low energy availability, aggressive dieting and exhausted training can flatten mood, libido and performance. Blood flow, sleep and metabolic health matter more for erections than any single macronutrient. I cover the exercise side in exercise and erectile function and the food pattern angle in diet for erectile health.

If you are cutting hard for a shoot or a holiday and your desire disappears, that is information, not a moral failure. Eat enough to train. Sleep. Then look at the rest.

Common carb mistakes I see

1. Fear of all carbs, then wondering why heavy squats feel terrible.
2. Mega shakes after every easy walk, as if a 20-minute stroll emptied glycogen.
3. Only eating carbs at night, then training at 7 a.m. on fumes.
4. Ignoring total daily intake while obsessing over a 30-minute window.
5. Using “low carb” as cover for low protein and low vegetables.

My take

Carbohydrates before and after a workout are tools. Use more of them when the session is hard, when sessions are close together, or when performance matters. Use fewer gimmicks when you train once a day and already eat a normal balanced diet.

Boxing taught me to respect fuel. You can be tough and still eat rice. The men who last are not the ones with the most extreme rules. They are the ones who can train hard on Thursday because they ate like adults on Wednesday.

If you want the human stories behind the industry names, read my columns on House of Maximo. Follow my work at maximogarciaworld.com, and for the 18+ side, fuckingpornstars.net.

Sources

1. Kerksick CM et al. International Society of Sports Nutrition position stand: nutrient timing. Journal of the International Society of Sports Nutrition, 2017.
2. NHS. The Eatwell Guide.
3. NHS. Understanding calories.
4. Jäger R et al. ISSN position stand: protein and exercise. Journal of the International Society of Sports Nutrition, 2017.