Back to the Basics
Did you know that the average adult consists of about 50-60% water? Water is an essential nutrient for all living things (that includes us!) and has many functions in the body. It acts as a lubricant for your joints and eyes and is the main component of saliva. Water also helps get rid of waste and helps regulate body temperature.
Hydration is the process of replacing water in the body. There are many ways to accomplish this, but here are just a few ideas:
When your body doesn’t have enough water to function optimally, it becomes dehydrated.
Your body loses water all the time. When you go to the bathroom, from sweat, and also evaporation from your skin. If you don’t consume enough fluids, you will become dehydrated.
Signs of dehydration include:
Can dehydration be measured? One way that you can keep an eye on your hydration levels is by measuring the amount of water lost during exercise. Weighing yourself before and after exercise can be a useful tool in estimating your hydration status.
Water is necessary for the transportation of oxygen and nutrients that your body needs for daily activities. This entire system can be thrown off when you lose water. When you are dehydrated, your body also has a lower overall blood volume, making your heart work that much harder to pump blood to your organs.
*Tip: Throughout the day when you use the bathroom, look at the color of your urine. This can give you a good idea of your hydration status. Lemonade color = optimal hydration! View a handy hydration chart here.
Water can be found in many sources. Water and other liquid drinks make up the majority at 80% of water consumed. Not all drinks are hydrating, however. Alcohol is one beverage that can actually dehydrate you. It’s a good rule of thumb to drink one glass of water for every alcoholic drink consumed. Food makes up the other 20% of water consumed, which includes fruit, vegetables, and yogurt. Soups are also hydrating, which contain sodium to aid in electrolyte replacement. If you are watching your sodium intake, make sure to read the labels on prepared soups, which can be quite high in sodium.
Electrolytes and Fluid Balance
Electrolytes can be found in sports drinks, but can also be found naturally in food. Foods high in sodium include salted nuts or trail mix, pretzels, crackers, and table salt. Processed foods tend to contain very high levels of sodium. Try sticking to whole foods to find a good balance between electrolyte and fluid intake. Foods high in potassium include bananas, potatoes, dark leafy greens, and citrus fruits. Foods high in magnesium include pumpkin seeds, almonds, cashews, peanut butter, spinach, and beans.
There is no one-size fits all recommendation for daily fluid intake. Your fluid needs vary depending on your body composition, activity level, and the amount of water lost through sweating and breathing. The Institute of Medicine (IOM) generally recommends men aged 19 and older consume 3.7 liters per day (about 15 cups) and women aged 19 older consume 2.7 liters per day (about 11 cups) from all fluid sources (water, other liquids, and foods).
~Daniel, Dietetic Intern
The Four F’s--fiber, fluid, flora and physical activity—are most commonly recommended to alleviate constipation. But they also help accomplish other positive things for your body. In this post we’re going to discuss how The Four F’s can improve and maintain the condition of your gut—and with it, your overall health.
With recent studies connecting gut health to overall well being, it makes sense to start with a simple question: What, exactly, is a healthy gut? In simple terms, a healthy gut has an ideal ratio of “good” bacteria to “bad” bacteria. It’s hard to visualize, but the community of bacterial microflora in your GI tract contains more than 100 trillion bacteria, made up of thousands of different species. It’s important to keep this gut microbiome in good condition, and not let factors such as environment, age, antibiotic use, and disease throw it off balance. Fortunately, there’s a lot you can do to influence your gut through eating and physical activity to maintain a healthy ratio of microflora. Let’s take a look.
The first “F” is fiber, and for good reason. With benefits ranging from managing blood glucose to lowering cholesterol levels, fiber is often referred to by dietitians as the “magical nutrient.” But what does it do for your gut?
When it comes to the digestive tract, there are two main types of fiber: soluble and insoluble. Soluble fibers dissolve in water and form a gel within the digestive tract, making bowel movements softer and easier to pass. They also can slow the digestion of foods and aid in unwanted symptoms such as diarrhea. Rich sources of soluble fiber are oats, beans, peas, and lentils.
Insoluble fiber does not form a gel. Rather, it acts as a bulking agent for our stools. Insoluble fiber combined with soluble fibers help keep us regular. Foods rich in insoluble fiber include skins of vegetables and fruits, brown rice, wheat bran, and whole grains. It’s important to remember that all plant-based foods contain fiber of both types. It’s simply the ratio of each that varies.
So what’s the bottom line? Make sure to eat a variety of plant-based foods, and to drink more fluids as you increase your fiber intake to keep your gut happy.
Gut microflora is a hot topic right now, with several studies linking gut microbiota to multiple health conditions, including obesity, allergies, diabetes, cancer—even some mental health conditions. A healthy microflora contains high levels of probiotic bacteria. Probiotics defend our guts from harmful microbes. The main role of the gut flora on the GI tract is to protect the gut epithelium from harmful pathogens. While a healthy gut is able to fight off most of these pathogens without any side effects, an unhealthy gut does not. Thus, one way to support the gut is to eat prebiotics (fiber) to support the existing probiotics in our guts. Also, eating fermented or cultured foods (with live probiotics) increases overall probiotic content and keeps the digestive system healthy. Examples of good probiotic foods include kimchi, sauerkraut, miso, cultured vegetables, yogurt, and tempeh.
And last, but not least...
A proper functioning gut is essential to overall health. Being mindful of The Four F’s gives you an important tool to improve and maintain your overall wellness while partaking in two of my favorite activities: eating and playing!
Here are a few tasty smoothie recipes to help you increase your fiber and fluid intake! Try adding plain Greek yogurt or kefir to any of your smoothies for an extra boost of probiotics, as well as protein. And of course, don’t forget to wash it all down with a brisk walk around the block!
Creamy Zucchini Blueberry Smoothie
Nutrition per 8 ounces: 218 Calories; 10g Fat; 6g Protein; 32g Carbohydrates; 4.7g Fiber; 67mg Sodium
Summer Peach Smoothie
Nutrition per 8 ounces: 227 Calories; 13.5g Fat; 6.7g Protein; 24g Carbohydrates; 6g Fiber; 44mg Sodium
*analyzed recipe using 1% milk and peanut butter
~Kelsy, Dietetic intern
A place for our consultant Registered Dietitian Nutritionists (RDNs) to share nutrition science, yummy and healthy recipes, tips on seasonal ingredients, and other nutritional musings. Enjoy!