The 5-A-Day Standard and Pesto’s Ingredients
The '5 a day' guideline recommends consuming at least five 80g portions of fruits and vegetables daily for optimal health. When evaluating whether pesto fits this criterion, it's important to look at its classic ingredients: basil, garlic, pine nuts, olive oil, and hard cheese like Parmesan. While fresh basil and garlic are plant-based, the quantities used in a typical serving are far too small to contribute a significant portion of a vegetable. The bulk of pesto's volume and calories come from high-fat ingredients such as olive oil and pine nuts, not the herbs. This means that a standard dollop of pesto on your pasta is not a shortcut to meeting your daily vegetable requirement.
Why Traditional Pesto Doesn't Stack Up
- Low Vegetable Volume: The quantity of basil and garlic in a serving is negligible compared to the 80g needed for one portion. A traditional recipe might use a cup of basil to make multiple servings, spreading the vegetable content very thinly.
 - High Fat Content: Olive oil and pine nuts are calorie and fat dense. While these are generally considered 'healthy fats', they still need to be consumed in moderation. The nutritional profile of a typical pesto is dominated by these fats, not the vegetables.
 - Sodium Levels: Many store-bought pestos, in particular, can be very high in sodium. Excessive sodium intake can have negative health implications and is not aligned with the general goal of healthier eating promoted by the 5-a-day initiative.
 
Maximising Your Pesto for a Healthier Meal
Although traditional pesto won't count as a full portion on its own, it can be a fantastic way to enhance dishes that do contain vegetables. Many people are adding extra veggies to their homemade pesto to boost its nutritional value and colour.
Ways to boost your pesto’s vegetable content:
- Add Leafy Greens: Mix in a handful of spinach, kale, or arugula with your basil when blending. These additions significantly increase the vegetable content without compromising the flavour. Blanching the greens first can help preserve a vibrant colour.
 - Blend in Roasted Veggies: For a different flavour profile, try adding roasted red peppers, sun-dried tomatoes, or even roasted zucchini to your sauce. Some sun-dried tomato pestos can contribute a small amount to your 5-a-day, but still often fall short of a full portion.
 - Pair with Vegetables: Use pesto as a dressing or flavouring for dishes rich in vegetables. This could include roasted vegetables, steamed green beans, or a vibrant vegetable pasta dish.
 
Homemade vs. Shop-Bought Pesto
There is a notable difference between homemade and store-bought pesto. While a homemade version gives you control over the ingredients, many commercially produced pestos contain lower quality oils and additional ingredients like potato flakes or vegetable fibre to reduce cost and boost shelf life. Checking the ingredients list on a shop-bought jar is always recommended.
| Feature | Homemade Pesto | Shop-Bought Pesto | 
|---|---|---|
| Control over Ingredients | Complete control over herb-to-fat ratio, salt, and quality of olive oil. | Often contains cheaper ingredients like vegetable fibre, potato flakes, or non-extra virgin oils. | 
| 5-a-day Potential | Easily boosted with extra greens or other vegetables to contribute to a portion. | Typically contributes very little due to low vegetable content and processing. | 
| Fat and Salt Content | Can be controlled to create a healthier version. | Often high in both fat and salt; requires portion control. | 
| Flavour and Freshness | Vibrant, fresh flavour from high-quality ingredients. | Flavour can be less fresh and more artificial depending on the brand and processing. | 
Conclusion: A Flavourful Addition, Not a Vegetable Serving
In conclusion, while pesto offers valuable nutrients from its ingredients like basil and olive oil, it does not count as a 5-a-day portion. The high concentration of fat and salt relative to the minimal amount of vegetables means it should be enjoyed as a flavourful condiment rather than a vegetable source. However, this doesn't mean it can't be part of a healthy diet. By making your own pesto and adding extra leafy greens, or by simply using it to flavour vegetable-rich dishes, you can enjoy its delicious taste while staying on track with your nutritional goals.
For more information on what counts towards your 5-a-day, consult the NHS guidelines.