Nutritional Trends

From Fermented Foods to Hormone-Balancing Diets – What Does Science Really Say?

Elaine Burston

11/5/20244 min read

If you glance at social media, it seems that eating well has never been so complex. Alongside advice to avoid ultra-processed foods and shun "bad" fats, we’re flooded with an ever-expanding array of sometimes contradictory dietary advice. This barrage can make healthy eating seem not only overwhelming but also bewildering. What will these choices actually mean for us in the long run?

Across platforms, people are touting the health benefits of every meal they eat, often promising revolutionary effects on hormonal balance, mood, or body composition. And while it might seem obvious to treat nutritional advice on social media with caution, it’s all too easy to get swept up in the excitement and start wondering if there’s a hint of truth behind the latest trends.

Let’s break down some of today’s hottest nutritional trends, examine what science really has to say, and explore which claims might have more substance than hype.

1. The Hormone-Balancing Diets: What’s Fact and What’s Fiction?

Hormone-balancing diets are one of the latest trends making waves. These plans claim to align your eating patterns to support hormone regulation, with promises of improved mood, better energy, and weight balance. However, while our diets do impact hormonal health, it’s often in indirect ways. Research from the Institute for Functional Medicine suggests that a diet rich in whole foods, alongside stress management and adequate sleep, is more beneficial for hormonal health than specific "hormone-balancing" diets (Institute for Functional Medicine). Real science indicates that managing stress, getting sufficient sleep, and balanced nutrition are far more impactful for hormonal health than any single trendy diet.

2. Fermented Foods: Are Kimchi and Kombucha Really Essential for Health?

From kimchi to kombucha, fermented foods are often marketed as a dietary cure-all, with bold claims about improved gut health, immunity, and even mental well-being. While there’s a growing body of research linking gut health to overall health, it’s important to separate proven benefits from marketing hype. According to Nature, consuming fermented foods in moderation can be beneficial for some people, particularly in supporting gut microbiota diversity and reducing inflammation, though these foods are not essential for everyone (Nature). Achieving a balanced diet rich in fibre (like fruits, vegetables, and whole grains) may be equally if not more effective for most people.

3. The Timing of Meals: Does ‘When’ We Eat Matter as Much as ‘What’ We Eat?

Intermittent fasting and other eating patterns based on meal timing have grown in popularity, with advocates claiming that when we eat has as much impact as what we eat. Some studies, including a review in Frontiers in Endocrinology, suggest that eating within a specific time window can help manage weight and support metabolic health (Frontiers in Endocrinology). However, there’s no universal approach to meal timing, and individual responses can vary greatly. For some, simply eating a balanced diet consistently matters more than adhering to a strict eating schedule.

4. Personalised Nutrition: Is Tailoring Your Diet to Your Unique Response the Key to Health?

The rise of personalised nutrition claims that we can optimise health by eating according to our unique responses to foods. Based on studies revealing how blood sugar levels vary from person to person, this approach has sparked significant interest. According to MDPI's Nutrients journal, personalised nutrition holds promise, but the science is still evolving (MDPI Nutrients). While personalised diets may become more effective as research advances, most of us can benefit right now from fundamental dietary principles like whole foods and diverse nutrients.

5. Snacking and Grazing: Could Small, Frequent Meals Benefit Health?

Snacking has traditionally been viewed with suspicion, often considered detrimental to health and weight management. However, recent insights from Verywell Health suggest that healthy snacking might actually support energy levels, help prevent overeating during main meals, and even contribute to stable blood sugar levels for certain individuals (Verywell Health). Choosing nutrient-dense, fibre-rich snacks like nuts, fruits, and veggies can make snacking a positive part of a balanced diet.

6. Dietary Fibre: The Overlooked Nutritional Powerhouse

Amid the flood of superfoods, dietary fibre stands out as a nutrient that truly delivers on its promises. According to the Harvard School of Public Health, fibre supports gut health, reduces inflammation, helps with weight management, and even lowers the risk of chronic diseases like heart disease and type 2 diabetes (Harvard School of Public Health). Despite these benefits, most people fall short of the recommended daily intake. Adding fibre-rich foods—such as whole grains, fruits, and vegetables—into daily meals is one of the most impactful dietary changes one can make for overall health.

7. Ultra-Processed Foods: Why Avoiding ‘Bad’ Foods Can Be Misleading

The campaign against ultra-processed foods has gained momentum, with health advocates encouraging people to avoid packaged and processed items altogether. While there’s truth to the fact that some processed foods contain added sugars, fats, and preservatives that may negatively impact health, not all processed foods are harmful. According to Time, it's essential to understand the spectrum of processing and make informed choices, rather than avoiding entire categories of foods out of fear (Time). The focus should be on choosing minimally processed foods, such as frozen vegetables or canned beans, that offer convenience without compromising nutrition.

Deciphering nutritional fads can feel like navigating a minefield, especially with the latest trend around every corner. However, a more practical approach can be found by sticking to scientifically supported basics: eat a variety of nutrient-dense foods, include adequate fibre, and consider how specific trends might work (or not work) for your unique lifestyle and health goals. Remember, while food fads come and go, balanced, wholesome eating is timeless.

Stay Tuned for More In-Depth Insights!

If you’re interested in diving deeper into any of these nutritional trends, you’re in luck! Over the coming weeks, we’ll be publishing detailed articles on each of these seven topics. From understanding the science behind hormone-balancing diets to exploring the real benefits of dietary fibre, these upcoming posts will provide you with clear, research-based guidance to help you make informed choices for your health. Be sure to check back regularly to catch these insights as they’re released! See you there!

All the best

Elaine