Dried fruit before exercise: the complete guide to boosting your performance

Before a workout, everyone talks about bananas, oats, or protein shakes. Dried fruit, however, is rarely the focus of pre-workout conversations—yet its nutritional profile makes it a prime fuel for many athletes, depending on the type of effort and timing. This guide breaks it all down: which dried fruits to choose, when to eat them, how much, and for which type of sport.

What the body uses up during exercise — and what it needs beforehand

To understand why some foods are better than others before exercise, we need to start with the physiology of exertion.

During exercise, the body consumes:

• Glycogen (carbohydrates stored in muscles and the liver) — the primary fuel at moderate to high intensity
• Fatty acids — a basic fuel source for low to moderate intensity energy
• Amino acids are recommended during prolonged exertion — especially if carbohydrate reserves are depleted.

Therefore, what a pre-workout snack should provide:

1. Carbohydrates to replenish or maintain glycogen
2. Proteins to protect muscle mass
3. Consume as little fat and fiber as possible in the immediate window (< 1 hour) — they slow down digestion

Oily dried fruits (almonds, cashews, walnuts, hazelnuts) are rich in fats and proteins, moderate in carbohydrates — which positions them as an ideal pre-exercise snack 1.5-2 hours before the session, not in the 30 minutes preceding intense effort.

Having understood that, here's how to use them intelligently.

The pre-exercise window: what's the right time for dried fruit?

Timing is just as important as the food choice itself.

Why avoid oilseeds in the 30 minutes before exercise?

Fats slow down gastric emptying—that is, the rate at which stomach contents pass into the intestines. Thirty minutes before the start of an intense workout, fats that are still being digested can cause digestive discomfort (nausea, heaviness, side stitch).

At 1:30-2:00, this problem no longer arises: digestion is already well advanced, and nutrients are available for the muscles.

Which dried fruits should you eat before exercise, depending on your activity?

Not all efforts are the same — and the ideal snack varies depending on the intensity, duration, and type of activity.

Bodybuilding and strength sports

Nutritional goal: protein to protect muscle + carbohydrates for energy

Almonds and cashews are the best allies here. Almonds provide 6g of protein per 30g serving—a modest but significant contribution when combined with other sources. Cashews, slightly richer in carbohydrates (9g/30g), provide both readily available energy and protective protein.

Recommended snack: 30-40g of cashew nuts + 1 banana, 1h30 before the session. Why the banana? It compensates for the lack of fast carbohydrates in oilseeds and provides potassium for muscle contraction.

Running and endurance

Nutritional goal: high glycogen + sodium/potassium + sustained energy

For running, digestive tolerance is a key factor—many runners experience gastrointestinal problems during exercise. Nuts and seeds consumed within two hours prior to a run are well tolerated by the vast majority of runners.

Walnuts are particularly beneficial here: their omega-3 content reduces inflammation and can lessen post-exercise muscle soreness. Their antioxidants also protect muscle cells from oxidative stress caused by prolonged exertion.

Recommended snack: 20-30g of almonds + 20g of raisins, 2 hours before departure. Avoid: a large quantity of oilseeds in the hour before intense endurance exercise — risk of digestive heaviness.

HIIT, CrossFit and high-intensity sports

Nutritional objective: readily available glucose + minerals (magnesium, potassium)

For short, intense bursts of activity, fuel needs to be readily available. Oilseeds alone aren't ideal in this case—their digestion is too slow to provide immediate energy. The winning combination: a few oilseeds (magnesium + protein) + a source of fast-acting carbohydrates.

The magnesium in cashews and almonds is the main advantage here: it prevents cramps, regulates neuromuscular transmission and manages the physiological stress of intense effort.

Recommended snack: 20g of cashew nuts + 1 fresh fruit (banana or apple), 1h-1h30 before. Optional: add some dried cranberries for fast carbohydrates.

Yoga, Pilates and low-intensity sports

Nutritional goal: digestive ease + essential nutrients

For low-intensity activities, a pre-workout snack is less critical—but still useful for preventing hunger that disrupts concentration. Dried fruit is perfect here: 20-25g of almonds or hazelnuts is enough, eaten an hour beforehand.

Recommended snack: 20-25g of almonds or hazelnuts, 45 minutes to 1 hour before

Team sports (football, basketball, tennis...)

Nutritional objective: sustained energy + explosiveness + concentration

Team sports require both endurance and repeated explosive efforts. The carbohydrate, protein, and magnesium profile of dried fruit is well-suited, especially when combined with a source of faster-acting carbohydrates.

Recommended snack: mix of 20g almonds + 15g cashews + 1 piece of fresh fruit, 1.5-2 hours before

The key role of magnesium in athletic performance

Of all the nutrients that dried fruits provide to athletes, magnesium deserves special mention.

Magnesium plays a role in:

• Muscle contraction and relaxation — a deficiency causes cramps
• The synthesis of ATP — the cell's universal energy molecule
• Managing oxidative stress related to intense exercise
• Regulating heart rate during prolonged exertion
• Post-exercise recovery and sleep quality

Magnesium deficiency is extremely common among regular athletes—significant amounts are lost through perspiration during each workout. Studies estimate that between 40 and 60% of athletes have insufficient magnesium levels.

Magnesium content of the main dried fruits:

A snack of 30g of cashew nuts + 30g of almonds before exercise therefore covers 42% of the daily magnesium requirement — difficult to match with a classic energy bar.

Dried fruit vs. energy bars: the honest comparison

The pre-workout bar market is huge. Here's an objective comparison with dried fruit.

The verdict: protein bars have the advantage over protein powder if the goal is intensive bodybuilding. On all other criteria—nutritional quality, minerals, absence of additives, value for money—dried fruit wins out.

The ideal combination for demanding athletes: dried fruit as a mineral and energy base + additional protein source if needed.

The Mixpow pre-workout snack recommended according to your profile

Before exercising on an empty stomach: do dried fruits have a place?

Exercising on an empty stomach (training in the morning without breakfast) is an increasingly popular practice, particularly for fat loss. There are two scenarios:

If you intentionally train fasted (intermittent fasting protocol): in this case, the goal is precisely not to eat beforehand. Respect this choice. Dried fruit can be consumed immediately after the workout for recovery.

If you're working out in the morning due to lack of time and are hungry, a small snack of 15-20g of cashews or almonds is a quick and light option, ideal 30-45 minutes before a moderate workout. For an intense workout, it's best to take the time to eat a little earlier.

Hydration and dried fruit: what not to neglect

Dried fruits are not very hydrating — that's their nature. When eaten before exercise, they should always be accompanied by water to aid digestion and prepare the body for exertion.

Simple rule: drink 200-300ml of water with your pre-sport snack, then continue to hydrate until the start of the session.

Lightly salted dried fruits (be careful not to exceed 1-2g of salt/100g) may even have a slight benefit for water retention before an endurance effort — to be used in moderation and in association with sufficient hydration.

How much dried fruit should I eat before exercising?

The general rule of 30g applies, with some adjustments depending on the intensity:

💡 To fully understand the quantities of dried fruit in daily life (not just sports), our article "How much dried fruit per day" will give you all the guidelines.

Frequently Asked Questions

Can you eat cashews right before exercise? Not in the last 30 minutes before intense activity—their fat content slows digestion and can cause discomfort. At 1.5 to 2 hours beforehand, they are perfectly tolerated by the vast majority of athletes.

Do dried fruits provide a quick energy boost? Not as quickly as a banana or honey. Their energy is gradual and sustained—this is their advantage for moderate and prolonged exertion. For immediate energy (less than 30 minutes before exercise), combine them with fresh fruit or dried fruit (raisins, cranberries).

Almonds or cashews before exercise — which should you choose? For strength training and short bursts of activity: cashews (more carbohydrates, more magnesium). For endurance and longer bursts of activity: almonds (more fiber and vitamin E, an antioxidant that aids exercise). Ideally, combine them. That's the idea behind Recovery Boost .

Do dried fruits help prevent cramps? Yes, thanks to magnesium. It's one of the most effective nutrients against muscle cramps. A regular snack of cashews and almonds helps maintain adequate magnesium levels—provided it's a regular habit, not just the night before a competition.

Can you eat dried fruit before exercise every day? Yes — and it's even recommended for regular athletes. The benefits for magnesium, recovery, and inflammation build up over time. A pre-workout snack of dried fruit can become an effective daily ritual.

Do dried fruits make you gain weight if you eat them before exercise? No. Their calorie density is offset by their satiating effect and the physical activity that follows. For a pre-workout snack, 30g of dried fruits represents approximately 165-175 kcal—a perfectly reasonable amount within an active person's calorie budget. We discuss this in more detail in our article on dried fruits for weight loss .

In summary

Dried fruit may not be the fastest fuel in the world — but it's among the most complete. Magnesium to prevent cramps, protein to protect muscles, sustained energy, antioxidants to reduce inflammation: their nutritional profile meets almost all the needs of athletes, provided they consume them at the right time.

Golden rule: 1.5 to 2 hours before your workout, eat 30g of cashews or almonds plus a source of fast-acting carbohydrates — and you'll be fueled to perfection. A can of Mixpow in your gym bag is exactly what you need. 🏃