I’ve been hearing from many athletes lately about the (hopeful) return of summer and fall races. Mileage ramping up. Adventures to look forward to. Giving special attention to day to day workout recovery.
After going virtually no where for the last 14 months, save a weeklong trip over the cascades last summer to spend a few days running and adventuring and seeing no one else, I signed up for a race (out of state!) earlier this week. And then promptly realized I should have double-checked that William and I were in firm agreement about the trip before committing for the both of us.
Oops. Apologies accepted and forgivenesses offered – the excitement is real!
Over on the Run Journal at Territory Run Co., I’ve shared another seasonal recipe series for a day of eating. As per usual, my idea was to keep ingredients seasonal and simple, with balanced flavors, and of course nutritionally sound for a solid day of fueling busy (and likely active) bodies.
Usually when I test recipes multiple times when working on new ideas, I get burnt out on them and quickly move on after sharing. This hasn’t been the case with this trio. They’ve been on repeat in various renditions for the last couple months. My favorite is definitely the soup. It’s super delicious.
Get the full article and recipes here, and check out some of the other great trail running articles submitted by other content ambassadors while you’re at it — there are so many good ones.
For a long time, it’s felt appropriate to share a food as medicine approach to eating in this space, but I’m not so sure I’ve adequately explained how to do this other than to share meals that are largely based on whole, minimally processed from-nature ingredients.
That effect can be incredibly subtle or super obvious and I don’t mean just the effects of the caloric, macro or even micronutrient content of your meal, but because each subtle flavor within a food and meal will affect your body and your mind.
Particularly when you eat in the same pattern of meals and flavors day in and day out.
The Six Flavors
There are six primary flavors within foods and ideally, all six flavors are incorporated into main meals, and at least four flavors are enjoyed at breakfast when we tend to eat a smaller amount. The six flavors are: sweet, salty, sour, bitter, pungent, and astringent.
Now, what foods have which flavor? And what are their effects?
The SWEET taste comes from foods that contain natural sugars: sweet root vegetables like carrots, squash, beets, all fresh and dried fruit, whole grains, natural sweeteners like honey, maple syrup, and molasses, and fresh dairy products such as milk, butter, and ghee.
The sweet flavor builds tissues within the body, calms the nerves and nervous system, and relieves hunger. It’s the flavor you likely reach for when you’re eating to soothe an emotion or for comfort. This is natural since the flavor of our first food of milk is sweet. That food-memory association between sweet food, love, and being comforted is particularly strong.
If you are dry, thin, nervous, anxious, scattered, or have nerve disorders, more naturally sweet foods are indicated and may be missing in adequate amounts in your meals – these are the whole grains, root vegetables, sweet fruits, and natural sugars.
The SALTY taste comes from foods that are naturally salty including seaweeds like kombu, arame, wakame, and nori. Some water-based vegetables are also naturally a little salty including celery, tomatoes, zucchini, and cucumbers. And of course, natural salt such as sea salt or pink mineral salt provides this flavor. Adequately cooking our foods in salt, and adding in a teaspoon per serving of dried seaweed when cooking beans or other stewy meals is an excellent way to build the salty flavor into a meal that will help us to retain the water we consume and have tissues that are more deeply hydrated, as well as provide a natural source of iodine – a critical and often missing nutrient for optimal thyroid health.
If you are dry, drink plenty of water but are still dehydrated, experience constipation or find that the meals you cook taste “flat,” incorporating the salty flavor during the cooking process, rather than at the end, can be especially helpful.
The SOUR flavor comes from foods such as lemons, lime, vinegars, unripe fruit, and fermented foods such as yogurt, pickles, kimchi, sauerkraut, sourdough bread, soy sauce and tamari. Many individuals either avoid sour foods or over-do them in meals. Both not enough and too much can cause problems. Adding in just a little squeeze of fresh lime juice or a little spoonful of apple cider or white wine vinegar at the end of cooking meals is frequently just enough of the sour flavor to lubricate tissues and stimulate the digestion process.
If you tend to run extra warm or frequently experience hot, agitated emotions, experience acid indigestion or reflux, have loose or sticky, incomplete stools, rashes, inflammation, or itchy, acne-prone skin, you may be over-doing the sour taste in your meals.
The PUNGENT flavor comes from hot and spicy peppers, black peppercorn, onions, garlic, ginger, mustard, horseradish, wasabi, raw radishes and turnips, asafoetida, cinnamon and cloves.
This flavor increases heat and stimulates digestion and metabolism. As such, you should incorporate it into your meals in slightly larger amounts if you are routinely cold, experience poor circulation, or have low digestive fire –meaning you don’t digest or tolerate foods well.
But for many others, too much pungent flavorings causes extra heat, excessive sweating and inflammation, skin rashes, acne, or eczema, agitated emotions, acid indigestion or reflux, and loose stools and diarrhea.
If you tend to be a person that’s eternally on the move, both physically or mentally, and find it difficult to slow down your mind or pause for a relax break or day, it’s safe to say you may also benefit from cutting out too much of the pungent flavor — take a couple weeks without onions, garlic, and spicy peppers and then take note of how you feel.
The BITTER taste is one many of us avoid. That’s unfortunate because the actions of bitter are to stimulate the digestion process by telling the body to begin releasing essential digestive acids and enzymes. The bitter flavor also helps the liver performs its routine detoxification process (necessary to get rid of waste products, excess hormones, and toxins), and it lightens tissues that are puffy and retaining water.
Bitter foods include aloe vera, dandelion leaves and root, dark leafy greens, all vegetables in the brassica family, burdock root, eggplants, Jerusalem artichokes, sesame seeds and oil, dark chocolate, coffee, and fenugreek seeds.
Like the pungent flavor, we want just a small amount of bitter flavors in our meals — not an excess. Where many people tend to consume too much bitter is in the form of coffee. Coffee is a stimulant, and caffeine can be particularly troublesome for the liver, especially if you have hormonal imbalances. Try to reduce your coffee intake to no more than one to two 8-oz. cups in the morning if you enjoy coffee regularly.
The ASTRINGENT taste comes in beans and legumes, cruciferous / brassica vegetables such as kale, cabbage, broccoli, and brussels sprouts, unripe bananas, pomegranates, cranberries, and most herbs and spices including basil, bay leaves, caraway seeds, coriander, dill, fennel seeds, marjoram, nutmeg, oregano, parsley, rosemary, saffron, turmeric, vanilla, coffee, tea, wine, and alcohol.
The astringent flavor helps us to absorb water, and dry and tighten tissues. I’ve used an alcohol-based (astringent) toner on my face a couple times a day for years, and to no surprise, I’ve also tended to experience frequent dry skin. The astringent nature of my facial toner is a wonderful example of what happens internally when we consume astringent foods. This can be excellent and necessary, in small amounts!
If you experience chronic diarrhea or varicose veins, two examples of the tissues not being able to hold onto their fluids, astringent foods or herbs may be beneficial in slightly larger amounts. On the other hand, if you have routinely dry skin, or a dry internal condition like constipation, eating and drinking less astringent foods will be helpful.
Six Flavors in Balance
Above all, a great way to begin to understand the effect of the different flavors and particular foods is to really pay attention to the flavor of the foods you are eating. Can you taste the sweetness when thoroughly chewing a whole grain or a steamed carrot? Can you pick out the drying, astringent effect as you take a sip of black tea, coffee, or wine? Do you notice how you internally heat up after a sandwich with spicy mustard or a bowl of particularly spicy soup? And then what do you notice in the minutes or hours afterwards?
When you begin to eat more meals that have a balance of the flavors, you’ll also notice that ongoing digestive symptoms and food intolerances might begin to reduce and eventually may even go away. And because meals simply taste better without being elaborate or extra complicated, cravings or over-eating begins to be less of an issue.
Much of my nutrition practice is focused on individuals and athletes with digestive health issues such as leaky gut, food allergies and intolerances, chronic GI distress, malabsorption of foods and nutrients, and inflammation. If you’re tired, stressed, and not really sure what to eat to help or hurt anymore, I invite you to reach out to me for more personalized support.
Leaky Gut, also called increased intestinal permeability or gut permeability is when the tight junctions, which are the space between each of the cells that line the small intestine where nutrient absorption occurs, loosen a little and allow larger food particles and bacterial fragments into the bloodstream, potentially setting off an immune response and inflammatory reactions (1).
If you have a digestive disorder or gut health problems, it’s generally safe to assume you have a leaky gut. Likewise, leaky gut symptoms can present in a wide variety of ways across multiple body systems – not just in the digestive system.
Leaky Gut is associated with Irritable Bowel Disease (IBD), Crohn’s Disease (CD), multiple sclerosis (MS), rheutamoid arthritis (RA), type 1 diabetes (T1D), asthma, necrotizing enterocolitis, and autism spectrum disorder (2), as well as celiac disease, non-celiac gluten sensitivity, various skin disorders (if your skin has problems–then you have digestive problems), and more (3). However, we haven’t yet determined whether leaky gut is a cause or consequence of these disorders.
The Athlete Component
What is not as well known to a lot of the run long and run harder crowd is that sustained endurance activities, particularly the jostling and pounding that we do as runners, can and will cause a fair bit of leaky gut symptoms. If you consider the anatomy and physiology of this region of the digestive system, it’s easier to see why. Picture a person running a three (or four, or nine) hour marathon or ultra endurance race, or a series of training runs day after day and throughout weeks and months. The race and many of the runs leading up to the race is going to be a hard and a long effort (sometimes both), which we also will sometimes begin without feeling as recovered from the last effort as we’d prefer. Then, while running, we down any number of foods and food-like substances to provide fuel to sustain the effort and to “train the gut.” This fueling on the go is something the digestive and nervous systems are arguably not designed for. We’re “supposed to” be in rest and digest mode while we’re processing those calories. So utilizing them on the go is a stress to the system.
Then there’s the gut itself. At the small intestine, the cells between it and the bloodstream are approximately one cell thick. This is because this is the site where broken down nutrients move through to be transported to the liver and other regions of the body for use. It’s super thin so nutrients can get where they’re supposed to go. But one cell, and the space between it and the next one, is pretty easy to damage with jostling and stress. So even with a perfect diet, a hard long run (or even a hard shorter run) can cause some damage down there. This is why many people have digestive complaints for three to five days after a race or hard effort. That’s exactly how long it takes for the epithelial lining to turnover into completely new cells!
But what makes leaky gut become chronic, thus inviting long-term digestive (or widespread) symptoms?
There are several lifestyle factors that can also lead to and sustain a leaky gut including stress (a BIG one!), lack of sleep, eating inflammatory foods, alcohol, antibiotics, oral contraceptives, prescription medications, exposure to environmental toxins, and frequent use of NSAIDS such as ibuprofen. Likewise, nutrient deficiencies, poor digestion due to digestive enzyme deficiency, overeating in general, wrong ratio of dietary fats, gut microbe dysbiosis and (sometimes hidden) other food allergies can also contribute. Oofda! That’s a lot of factors that can be working against us.
That Villain Gluten and the Bacterial Connection
Dr. Alessio Fasano, a leading scientist who studies celiac disease and related pathologies, discovered an enterotoxin called zonulin a few years ago. Zonulin disassembles the tight junctions in the intestinal lining, allowing pathogens through and thus causing more intestinal permeability. Dr. Fasano’s research team found that zonulin release is primarily triggered by both bacteria and gliadin. Gliadin is part of the gluten protein complex (2.) Hence the reason many of us are either mildly or definitively reactive to gluten-containing foods, at least some of the time.
Before developing increased intestinal permeability, changes in the gut microbiota have also been shown to occur, which, given that zonulin release is often triggered by bacteria, suggests that the bacterial change occurs first, and then zonulin release assists the epithelial tight junctions to disassemble, leading the way for subsequent disorders or diseases to develop after sustained leaky gut-inflammatory reactions. It has been suggested that an environmental stimulus, (that list above including stress, gluten, a virus, inflammatory diet, etc.) first causes the change in the gut microbiota (2).
How to Heal
Healing chronic leaky gut often takes a many-pronged approach. We have to remove as many of the things that are causing it as it’s appropriate to. For those of us who aren’t willing to give up endurance athlete lifestyles, that means eating a diet appropriate for the individual, repletion of nutrient deficiencies, and lifestyle tactics (that stress relief component!) become particularly important.
References: 1). Lipski, E. (2012). Digestive Wellness (4th ed). McGraw Hill: New York, NY. 2). Sturgeon, C. and Fasano, A. (2016). Zonulin, a regulator of epithelial and endothelial barrier functions, and its involvement in chronic inflammatory diseases. Tissue Barriers, 4(4). https://doi.org/10.1080/21688370.2016.1251384. 3) Kneessi, R. (2017). NUTR 635: Adverse Reactions to Food. [Lecture]. Maryland University of Integrative Health. Retrieved from: https://learn.muih.edu