Welcome to the world of nutrition, where each nutrient plays a unique and essential role in our health and wellbeing. Today, we’re diving deep into the fascinating world of protein! This isn’t just about muscle gains or fitness fads; it’s about uncovering the deeper roles that protein plays in our bodies. As a Registered Dietitian, I get to wear my nutrition detective hat every day, and I’m passionate about sharing this knowledge with you. Together, we’ll explore how this mighty macronutrient is not just about building muscles, but is also a star player in supporting our overall health and wellbeing. So, grab a cup of your favorite tea, make yourself comfy, and let’s dive into the fantastic world of protein!

What is protein?

Protein is one of the three essential macronutrients, alongside carbohydrates and fats. It is composed of small units called amino acids, which are often referred to as the building blocks of life. Our body uses 20 different types of amino acids to construct various proteins, which perform various functions, from creating structural components of cells to acting as enzymes, antibodies, and messengers.

What are the benefits of protein?

• Reproductive Health and Hormone Balance: Hormones are chemical messengers that play a vital role in our body, including our reproductive health. A balanced intake of protein can help in the formation and regulation of hormones, including those related to fertility (such as peptide hormones).[1,2] This is because proteins help to stabilize our blood sugar levels by slowing the absorption of glucose from the carbohydrates we eat, which in turn helps to regulate insulin levels—a hormone produced by the pancreas. This balancing act is crucial as consistently high sugar levels can lead to insulin resistance and other hormonal imbalances.[1] Additionally, eating protein-rich foods can make us feel fuller for longer, reducing the chances of overeating and weight gain, which is vital since excess body fat can further disrupt our hormone balance.[1]

• Glucose Tolerance: Protein can play a role in improving glucose tolerance, which is crucial for managing and preventing diabetes. Consuming protein with a meal can help slow the absorption of carbohydrates and thus reduce the post-meal rise in blood sugar. A randomized controlled trial compared the effects of diets with varying amounts and sources of protein on insulin sensitivity in individuals with obesity and insulin resistance. The results demonstrated that after one month, high-protein, low-calorie diets significantly improved insulin sensitivity by 60-90% in these individuals, regardless of weight loss and whether the protein source was animal or vegetable.[3] In another study, 20 insulin-resistant obese women were assigned to either a Mediterranean diet or a high-protein diet, both containing the same number of calories, to compare how these diets affected their metabolic health. The results showed that the high-protein diet was more effective than the Mediterranean diet in reducing insulin resistance and improving blood sugar stability.[4] 

• Maintaining a Healthy Weight: Incorporating protein-rich foods into your meals can be a game-changer for weight management. Consuming enough protein can help you feel fuller for longer, thereby reducing unnecessary snacking and overeating.[5] For example, a study of 156 obese Chinese adolescents were randomly assigned to eat either a high-protein egg breakfast or a steamed bread breakfast.[6] The results showed that the group eating the egg breakfast experienced increased feelings of fullness, ate less food at lunchtime, and had reduced body weight after three months.[6] This group also had higher levels of hormones that promote feelings of fullness (PYY and GLP-1), suggesting that the high-protein breakfast helped with weight loss by making these adolescents feel fuller and eat less later in the day.[6]
• Sarcopenia and Healthy Muscle Mass: Sarcopenia, or muscle loss, is a major risk factor for health problems in older adults, and studies have shown that not getting enough energy and protein is linked to reduced muscle mass in this group.[7] Having adequate muscle mass can help prevent metabolic syndrome. In a study involving 90 healthy Japanese women aged 65 years and older, researchers looked at how body composition, specifically muscle mass and visceral fat (the fat around internal organs), is related to metabolic syndrome (MetS) – a group of conditions that increase the risk of heart disease and other health problems.[8] The results showed that having more visceral fat was linked to a higher risk of MetS, while having more muscle mass was linked to a lower risk of MetS, even after accounting for the amount of visceral fat a person had.[8] This suggests that keeping muscle mass up in older age might help protect against heart disease and other health problems related to MetS.[8]

How much protein do I need?

Protein requirements can vary based on several factors, including age, sex, physical activity level, and overall health. Here are the general daily protein recommendations for adult males and females, but it’s important to consult with a healthcare professional for personalized advice. For adult males, the Recommended Dietary Allowance (RDA) for protein is 56 grams per day and for adult women, it’s 46 grams per day. 

Foods high in protein 

Here are some of the top sources of protein per 3.5 ounces/100 grams serving:[9] 

• Lean chicken breast: 32 grams
• Lean pork chops: 31 grams 
• Tuna: 29.9 grams 
• Skirt steak beef: 28.7 grams 
• Firm tofu: 17.3 grams 
• Lentils: 9 grams 
• Low-fat yogurt: 5.7 grams 
• Eggs: 12.6 grams 

Include a variety of these in your diet to ensure you’re not only meeting your protein needs but also getting all the essential amino acids your body requires.

Bottom Line:

Protein is far more than a nutrient for those looking to build muscle; it is a critical part of overall health. From playing a role in hormone balance to assisting in weight management, glucose tolerance, and maintaining vibrant muscles as we age, protein is indeed a powerhouse nutrient.

Remember, everyone’s protein needs are different and it’s essential to find what works best for your unique body and lifestyle. Need extra guidance? Book a free call with me here! I’m here to answer your questions and help you navigate your path to optimal health through nourishing food choices.

References:

1. Peeru, S. Protein rich foods are important in hormonal balance. Linkedin.com.
2. Lang, A., BSc, & MBA. (2021, November 3). Everything you should know about hormonal imbalance.
3. González-Salazar, L. E., Pichardo-Ontiveros, E., Palacios-González, B., Vigil-Martínez, A., Granados-Portillo, O., Guizar-Heredia, R., Flores-López, A., Medina-Vera, I., Heredia-G-Cantón, P. K., Hernández-Gómez, K. G., Castelán-Licona, G., Arteaga-Sánchez, L., Serralde-Zúñiga, A. E., Ávila-Nava, A., Noriega-López, L. G., Reyes-García, J. G., Zerrweck, C., Torres, N., Tovar, A. R., & Guevara-Cruz, M. (2021). Effect of the intake of dietary protein on insulin resistance in subjects with obesity: a randomized controlled clinical trial. European Journal of Nutrition, 60(5), 2435–2447. 
4. Tettamanzi, F., Bagnardi, V., Louca, P., Nogal, A., Monti, G. S., Mambrini, S. P., Lucchetti, E., Maestrini, S., Mazza, S., Rodriguez-Mateos, A., Scacchi, M., Valdes, A. M., Invitti, C., & Menni, C. (2021). A high protein diet is more effective in improving insulin resistance and glycemic variability compared to a Mediterranean diet—A cross-over controlled inpatient dietary study. Nutrients, 13(12), 4380.
5. Pugle, M. (2018, June 22). How 30 grams of protein at breakfast can help you lose weight. Healthline Media.
6. Wang, S., Yang, L., Lu, J., & Mu, Y. (2015). High-protein breakfast promotes weight loss by suppressing subsequent food intake and regulating appetite hormones in obese Chinese adolescents. Hormone Research in Paediatrics, 83(1), 19–25.
7. Landi, F., Calvani, R., Tosato, M., Martone, A., Ortolani, E., Savera, G., D’Angelo, E., Sisto, A., & Marzetti, E. (2016). Protein intake and muscle health in old age: From biological plausibility to clinical evidence. Nutrients, 8(5), 295. 
8. Nomura, K., Eto, M., Ogawa, S., Kojima, T., Iijima, K., Nakamura, T., Araki, A., Ouchi, Y., & Akishita, M. (2020). Association between low muscle mass and metabolic syndrome in elderly Japanese women. PloS One, 15(12), e0243242.
9. Whitbread, D. (2009, March 9). Top 10 foods highest in protein. Myfooddata; My Food Data. 

Are you frequently bothered by gut issues like bloating, gas, or diarrhea after eating a meal?  If you’re one of the millions of people dealing with Irritable Bowel Syndrome (IBS), you know all too well the adverse effects certain foods can have on your gut. But there’s a way to help tame this turmoil: the FODMAP Elimination Diet. Let’s dive into the fascinating world of FODMAPs and how they can be a game-changer for your gut health.

What Exactly Are FODMAPs?

FODMAP is an acronym for Fermentable (produce gas), Oligosaccharides (Fructans and Galacto-oligosaccharides), Disaccharides (Lactose), Monosaccharides (Fructose), and Polyols (Sorbitol and Mannitol). These are essentially a group of short-chain carbohydrates found in various foods. They range from certain natural sugars in foods like milk, fruit, honey, and high-fructose corn syrup to specific types of fiber found in wheat, rye, onions, garlic, and beans.

But why should we pay attention to FODMAPs? Here’s what they have in common and why they’re relevant to your gut health:[1]

1. Poorly Absorbed: These carbs often don’t get completely absorbed in the small intestine. Over time, the undigested FODMAPs make their way to the large intestine.
2. A Bacteria Buffet: FODMAPs are the preferred food for the bacteria living in our large intestine. When these bacteria feast on FODMAPs, they produce a significant amount of gas.
3. Fluid Attraction: Acting like a sponge, FODMAPs attract and retain excess fluid in the large intestine, disrupting the gut’s normal fluid balance.

If we envision our large intestine as a water balloon, the combination of stool, gas, and fluid from FODMAPs can cause it to swell uncomfortably. This is often experienced as painful bloating, and can lead to diarrhea or constipation in those with IBS.

Consider your tolerance to FODMAPs as a unique bucket capacity. If the bucket overflows – meaning your FODMAP intake exceeds your personal limit for digestion and absorption in the small intestine – you could experience IBS symptoms.

The FODMAP Elimination Diet: A Dietary Experiment

The FODMAP Elimination Diet is an experiment for your gut – not a permanent eating plan. It’s a temporary plan that restricts these foods in order to alleviate symptoms and give the digestive system a break. Up to 86% of IBS patients report reductions in all gastrointestinal symptoms after following this diet.2 Eliminating irritants gives your gut lining the opportunity to heal and can aid in re-establishing a balanced gut flora. 

This three-step approach involves removing FODMAP sources from your diet, reintroducing them systematically, and using your newfound knowledge to maintain a diverse and nutritious diet. Here’s how it works:[1]

1. Eliminate FODMAPs: Remove all high-FODMAP foods from your diet. This can lead to a significant improvement in your IBS symptoms within 1-2 weeks.
2. Reintroduce FODMAPs: Gradually reintroduce FODMAPs back into your diet in a controlled manner, observing any changes or symptoms. This helps identify your personal FODMAP tolerance.
3. Maintain A Balanced Diet: Use your experiences and learnings from the first two steps to maintain a balanced, nutritious diet that respects your unique FODMAP tolerance.

These are the food sources you should be avoiding and their alternatives, but you should always refer to your dietitian or doctor before eliminating any food:[3]

Remember, everyone’s tolerance to FODMAPs varies. What may trigger symptoms in one person may not affect another. Therefore, it’s crucial to monitor your symptoms and consult with a dietitian or healthcare professional during this process.

Irritable Bowel Syndrome and FODMAPs

Irritable Bowel Syndrome (IBS) is a common disorder that impacts the large intestine, often resulting in discomfort, bloating, and changes in bowel habits. The connection between IBS and FODMAPs has been gaining significant attention in the health and research community, and with good reason.

But why exactly is a low-FODMAP diet recommended for IBS? It all comes down to how FODMAPs interact with our bodies and influence IBS symptoms:[4]

• FODMAPs and IBS Symptoms: FODMAPs are known to induce IBS symptoms. They can increase fluid volume in the gut and gas production due to fermentation, leading to distention of the intestines, which can then trigger changes in gut motility, bloating, and pain.
• Effectiveness of a Low-FODMAP Diet: A study conducted by King’s College London uncovered some compelling data. The research revealed that a whopping 76% of IBS patients following a low-FODMAP diet reported satisfaction with their symptom score, compared to only 54% in the group following a standard diet. That’s a substantial proportion of individuals gaining relief from their discomfort!
• Accessibility and Compliance: Implementing a low-FODMAP diet doesn’t require specialized blood tests or a severely restricted diet. It involves an understanding of the foods that contain high levels of FODMAPs and learning to balance them with low-FODMAP alternatives. Patients often find this approach manageable and can stick with it, resulting in high compliance rates.

However, it’s important to note that while a low-FODMAP diet can significantly improve IBS symptoms, it is not a cure-all. Some people may not experience a reduction in their symptoms, and it doesn’t prevent the underlying causes of IBS. Each individual’s response to a low-FODMAP diet can vary!

Bottom Line: 

Understanding FODMAPs and the role they play in your gut health is a significant step towards managing IBS symptoms that are not immune related. I often use FODMAP diet principles along with the MRT food sensitivity testing for my clients that suffer from IBS. It can be difficult to navigate any elimination diet (like the FODMAP diet) alone and it may lead to inadequate nutrient intake if not followed correctly. This is why elimination diets should always be done under the supervision of a dietitian who can keep you well-nourished while following the diet, and can make any necessary adjustments as needed. 

If you need extra support in improving your gut health and discover the root cause of your digestive distress, click here to book a FREE discovery call with me!

References: 

1. Pond Cove Press. (2013). FODMAP Practice Kit for Dietitians.
2. Nanayakkara, W. S., Skidmore, P. M., O’Brien, L., Wilkinson, T. J., & Gearry, R. B. (2016). Efficacy of the low FODMAP diet for treating irritable bowel syndrome: the evidence to date. Clinical and Experimental Gastroenterology, 9, 131–142. 
3. Low fodmap diet: What it is, uses & how to follow. Cleveland Clinic. Retrieved July 5, 2023.
4. Ldn, K. S. R. (2013, September 16). What Every RD Needs to Know about FODMAPs.