High-protein diets for athletes have exploded in popularity, fuelled by promises of better muscle growth, energy, and recovery. Supermarket shelves are full of protein-rich yoghurts, bars, and shakes, and many athletes I work with now treat protein as the cornerstone of performance nutrition.
But this growing obsession often comes at a cost: carbohydrates get left behind, and fuelling for training suffers. In this post, we’ll explore how high-protein hype can lead to macronutrient imbalances, what athletes truly need to perform, and how to spot marketing over substance.
Why Protein Is Everywhere Right Now?
With gym culture booming and fitness influencers dominating social media, protein has become a buzzword. High-protein products are being added to everything from cereal to ice cream. For athletes, the appeal is obvious: support for muscle growth, improved recovery, and that sweet tooth hit without the ‘guilt’.
But just because a food is labelled “high protein” doesn’t mean it supports your overall performance nutrition needs. Athletes require more than just protein. Fuelling for training, recovery, and competition involves a strategic balance of all macronutrients—not just one.
Protein-Enhanced Everything: Useful or Just Clever Marketing?
The range of protein-rich foods on offer is expanding rapidly. High-protein pastas, granola, puddings, and even bread are marketed as healthier alternatives. While they can help meet higher protein needs, they’re often ultra-processed and come with added fats, sweeteners, or salt. Some products advertising an higher protein content than their original sibling actually only have an extra 2-3g per serving, a minor detail missed unless you compare nutritional labels.
The issue is that many athletes believe choosing these products is always better, even when it displaces more balanced, whole-food options. And when most athletes are already eating enough protein from meals, these additions might not be helping much.
Carbs: The Forgotten Macronutrient
In my work with athletes, I often see a familiar pattern: a strong focus on protein and a fear of carbohydrates, especially sugars. This can lead to chronic under fuelling, which affects energy levels, recovery, and performance.
Carbohydrates for athletes are essential. They are the body’s primary energy source during training and competition. When carbs are restricted in favour of high-protein choices, athletes risk low glycogen availability, increased injury risk, and reduced training quality.
How Much Protein Do Athletes Really Need?
Protein requirements do vary, and some athletes genuinely have high needs. Here’s a quick breakdown:
| Athlete Type | Protein Recommendation (g/kg bodyweight) | Approximate Daily Range |
|---|---|---|
| General Health | 0.8–1.0 | 56–70g |
| Endurance Athletes | 1.2–1.6 | 84–112g |
| Strength/Hybrid Athletes | 1.5–2.0 | 105–140g |
| Hypertrophy, Injury, Weight Loss | 2.0–2.5 | 140–175g |
Some high-protein foods—like Skyr yoghurt, eggs, or protein milk—can absolutely help meet these needs. And in certain cases, it’s fine to exceed the range, as long as it’s not at the expense of carbohydrate intake. Prioritising protein should never mean under fuelling the energy demands of training.
The Labelling Trap: What “High Protein” Really Means
In the UK, a product can be labelled “high in protein” if at least 20% of its energy comes from protein, and a “source of protein” if it hits 12%. However, high-protein diets for athletes can become problematic when these products are heavily processed or displace nutrient-dense meals.
Unlike sugar, fat, and salt, protein is not included in the UK’s traffic light food labelling system. This means foods can wear a “health halo” for being protein-enriched, even if they’re high in salt or saturated fat. As a result, athletes might overestimate the value of these foods.
Here is how they are assessed per 100g:
| Nutrient | Green (Low) | Amber (Medium) | Red (High) |
|---|---|---|---|
| Fat | ≤3g | >3g to ≤17.5g | >17.5g |
| Saturated Fat | ≤1.5g | >1.5g to ≤5g | >5g |
| Sugars | ≤5g | >5g to ≤22.5g | >22.5g |
| Salt | ≤0.3g | >0.3g to ≤1.5g | >1.5g |
Source: Food Standards Agency
Recommendations For Athletes
Rather than chasing grams of protein or relying on heavily marketed products, athletes should focus on meeting macronutrient needs in a structured, intentional way:
- Three balanced meals per day, each with carbs, protein, healthy fats and veggies
- Strategic fuelling before and during training sessions (especially with carbohydrates)
- A recovery meal or snack with both carbs and protein
- Additional snacks where needed to meet energy demands
This is what good performance nutrition looks like. It’s consistent, food-first (but not always only), and supports both training and recovery.
Final Thoughts: Rethinking Protein Priorities
Protein is crucial for recovery, muscle repair, and long-term health. But it’s only one part of the picture. Overemphasising protein can unintentionally push out the carbohydrates and overall fuelling that athletes truly need.
High-protein diets for athletes can be helpful when applied appropriately. But chasing more protein without understanding balance can hinder rather than help. Make carbs part of your plan—not something to fear. That’s how you fuel performance, not just protein intake.
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