A Tolerance Kitchen article.
The below content has been created with the input of a range of dietitians and sources. Following a low histamine diet should always be done alongside a qualified dietitian. Your own unique intolerances may make you more susceptible to certain foods than others, and long term adherence can lead to deficiencies in other important nutrients. You can find a list of trusted histamine dietitians here, all of whom offer 1:1 online sessions to help you get started and work with you to create a personalised diet.
The Seasonal Kitchen: August
August in Britain is a month of culinary highlights. Vegetable gardens and allotments are overflowing, the trees are heavy with stone fruit, and blackberries are growing wild even in suburban environments. It is a time of vibrant salads, fruit-filled desserts, and the peak of summer eating. Unfortunately, some of the very foods that define the season seem to be the ones that can cause your personal Histamine Bucket to overflow.
In the first of a new monthly series, we're going to explain why some of August’s peak produce can be challenging, and to provide a framework for making informed choices that feel right for you.
The Trouble with Tomatoes
The tomato is arguably the biggest challenge of the late summer harvest. It is a cornerstone of so many dishes, yet it consistently appears on high-histamine food lists. The reason for this is twofold, involving both external and internal histamine sources.
- They Contain Histamine: Tomatoes naturally contain histamine, and this level increases as the fruit ripens. A pale, firm tomato straight from the vine will have less histamine than a soft, deep red one that has been sitting in a fruit bowl for a few days. This is an example of external histamine, which you consume directly from your food. You can learn more in our guide to Histamine in Food & Drink
- They Can Be Histamine Liberators: This is a crucial, and often confusing, piece of the puzzle. Some foods are thought to trigger your body’s own immune cells (mast cells) to release their stored, internal histamine. This means that even if a food is not high in histamine itself, it can still contribute significantly to your overall histamine load. As we explore in our article on DAO Supplements vs. Antihistamines, your body’s own histamine release is a separate process from digesting the histamine in your food
For practical ways to replicate the flavour and texture of tomatoes in your cooking, our guide on how to replace tomatoes offers a range of creative, low-histamine swaps.
Stone Fruit Season: A Case of Individual Variation
Plums, peaches, nectarines, and apricots are another highlight of August, but they also fall into the category of potential histamine liberators. It is important to approach this category with curiosity rather than fear. The concept of histamine liberators is less scientifically defined than direct histamine content, and the effects can vary dramatically from person to person.
This is where personal tracking becomes your most powerful tool. Keeping a detailed histamine diary can help you identify if a specific fruit, like a ripe plum, consistently causes a reaction for you, or if you can tolerate it in small amounts. You might find that you are fine with a firm nectarine but react to a very soft, juicy peach. Ripeness plays a role here too, as the compounds in the fruit change as it matures.
You can read more about different fruit options for you in our article on histamine levels in fruit.
What August Offers: Your Low-Histamine Harvest
While some of August’s headliners can be tricky, the month is also bursting with delicious, generally well-tolerated produce. Focusing on what you can enjoy is an empowering way to approach your diet. Look out for these seasonal gems:
- Courgettes
- Runner beans
- Sweetcorn
- Carrots
- Beetroot
- Lettuces and salad leaves
- Fennel
- Blueberries and Blackberries (generally considered lower histamine, but always be mindful of ripeness and your personal tolerance)
For a more comprehensive overview of different food groups, our Low Histamine Diet & Food List is a helpful resource to use alongside your dietitian. Remember that everyone will react slightly differently to different foods, and that external factors beyond you diet can contribute to your histamine bucket overflowing.
Strategies for Navigating the Month
Managing your histamine bucket is about looking at the bigger picture, not just one ingredient. Here are a few strategies to keep in mind during this challenging month.
1. Prioritise Freshness Above All: This is the golden rule. Histamine levels in produce increase over time. A freshly picked courgette is always a better choice than one that has been sitting in the fridge for a week. This is also why the frozen aisle can be your best friend, as fruit and vegetables are often frozen at peak freshness, pausing histamine development.
2. Be Mindful of Your Total Load: Remember that your bucket is filled by more than just food. If you are going through a stressful period at work or your hay fever is bad, your internal histamine levels may already be high. As we explore in The Stress-Histamine Connection, managing stress is a key part of managing your overall tolerance. On high-stress days, it might be best to stick to your most reliable, low-histamine meals.
3. Consider Your Toolkit: For those with a recognised DAO deficiency, the issue lies with breaking down external histamine from food. The diamine oxidase (DAO) enzyme is your gut’s primary tool for this job. It is possible to support your body's natural supply by taking a DAO supplement. Products like our Aperitif are designed to be taken 15 to 20 minutes before a meal. This can help with the digestion of histamine from the food you are about to eat. Please note, DAO enzymes work on the histamine contained within food; they do not affect your body’s own release of internal histamine from liberators.
Ultimately, navigating August is about empowerment. By understanding the mechanisms at play and listening to your own body, you can make choices that allow you to enjoy the season with more confidence and less anxiety. If you are just starting your journey, our Beginner's Guide is a great place to get a broader overview.
This article is for informational purposes only and does not constitute medical advice. Please consult a qualified healthcare professional for advice specific to your situation.