You eat a bowl of fruit for breakfast and a plate full of salad for lunch? It might seem like your healthy diet is taken care of. But have you ever tried to count how many different fruits, berries, and vegetables make up your daily intake? Are you reaching the variety of colors and nutrients that your body truly needs?
The WHO recommends consuming at least 400 g of fruits, berries, and vegetables every day, but this recommendation covers not only the quantity but also the diversity. Different colors, different textures, and different plant-based substances are not just for aesthetics—they are a scientifically grounded way to obtain a broader spectrum of compounds essential for health.
In this article, we will examine why dietary diversity is so important, how it relates to the gut microbiota, and how to get more sources of different fiber every day.
Nutrient diversity: what are we actually missing?
In modern nutrition, we often focus on quantity: how many portions we ate, how many steps we took, how many calories we burned. However, what truly determines long-term health is diversity. Not just how much, but what we eat. Even if fruits or vegetables appear on our lunch plate every day, they are often the same ones: tomatoes, cucumbers, lettuce, bananas, apples. It seems healthy, but in reality, it is very limited.
Each type of fruit or vegetable has a unique nutritional profile: the fiber, phytonutrients, antioxidants, minerals, and vitamins they contain all differ. Scientific studies consistently emphasize that the body requires not only an adequate dose of nutrients but also a broad spectrum of different nutritional compounds. This is especially relevant for our gut microbiota, which thrives only when it is nourished by diverse plant sources.
For this reason, nutritionists around the world recommend not only aiming for 400 g of fruits, vegetables, and berries every day but also striving to diversify your diet with as many different colors, textures, and types as possible. This is called "eating the rainbow," and this principle is truly grounded in science: different colors mean different antioxidants, different types mean different forms of fiber, and combining different plants results in greater biological diversity in our gut.
Nevertheless, many people's diets are quite monotonous, with the same few plant foods repeating daily. Researchers from the American Gut Project observed that people who consumed 30 or more different plant-based foods per week had a more diverse gut microbiota than those who consumed 10 or fewer (McDonald et al., mSystems, 2018). So, even when we appear to be "eating healthily," we are often missing out on most of the potential that nature has to offer.
Fruits and vegetables contain a wealth of essential nutrients: vitamins, minerals, fiber, antioxidants, and phytonutrients. Consuming a variety of these foods increases the likelihood of receiving a broad spectrum of nutrients that are important for overall health.
Nutrient synergy: when substances work better together
When we talk about nutrition, we usually think about individual nutrients: potassium, vitamin C, or iron. However, nature is designed so that these compounds work not in isolation, but as a team. Some substances enhance the effects of others, so the more varied the diet, the better the entire body functions. This synergy is the reason why combining various plants has such a powerful effect on health.
Vitamin C + iron
Vitamin C can improve the absorption of plant-based iron by up to 2–4 times. Therefore, eating spinach and lemon together is a wise choice.
Phytochemical compounds and fiber
Flavonoids, polyphenols, and fiber are often found in the same plant foods, so a varied diet allows you to get them all.
Carotenoids + healthy fats
Pumpkin or sweet potatoes with a drop of olive oil: this is the "activation" of fat-soluble vitamins.
Gut health: more variety, more vitality
Although we often think of the gut through the lens of digestion, its role is much broader. Trillions of microorganisms live in the gut. They are collectively known as the gut microbiota, and scientists are studying their connection to the immune system, metabolism, and even mood.
The more diverse the diet, the more diverse the gut microbiota.
Different bacteria "specialize" in different fibers:
- some feed on pectin,
- others on inulin,
- others on insoluble fiber,
- and still others on polyphenols.
If the diet lacks variety, the diversity of the microbiota also decreases. In studies, lower microbiota diversity is associated with various digestive and metabolic disorders, although the causal links are still being investigated.
If you are not getting enough fiber in your diet, you can supplement it with a fiber blend. fruttberry fiber blend is a combination of several fiber sources and berries: it contains psyllium husk, agave inulin, glucomannan from konjac, freeze-dried strawberries, and blackcurrants. If unpleasant digestive symptoms persist, it is worth consulting a doctor.
Disease prevention
A diet rich in fruits and vegetables is associated in studies with a lower risk of chronic diseases, which is why the World Health Organization recommends eating at least 400 g per day. Plants contain polyphenols, antioxidants, and fiber, and their health effects are actively being studied by scientists. Fiber is also important for normal bowel function.
These connections are not accidental: they are explained by two main mechanisms:
- Plant compounds. Polyphenols, flavonoids, and carotenoids are compounds found in plants whose health effects are actively being studied.
- Fiber. Fiber-rich foods are generally more satiating, and some soluble fibers slow down stomach emptying.
- Microbiota. A diverse diet rich in plant-based products is associated in studies with a more diverse gut microbiota.
However, in reality, achieving dietary diversity is difficult. Consuming 30 different plant-based products a week is rarely successful, even for those who try to eat healthily. The diet becomes repetitive, gaps appear, and the variety of fiber and plant compounds decreases.
If you want to supplement your daily diet with fiber, you can choose fruttberry nutritional fiber blends, which contain several types of fiber. It is a simple daily habit that is easy to maintain: the blend can be mixed into water, yogurt, or breakfast porridge, and the mild berry flavor makes it easy to consume daily.
fruttberry fiber blends can help you get more of the fiber that is missing in many of our diets. However, the foundation should remain a varied diet with vegetables, fruits, legumes, and whole grain products.
This article is for informational purposes only and does not replace the consultation of a doctor or nutritionist. If you have chronic illnesses, are taking medications, are pregnant, or are breastfeeding, consult your doctor before taking dietary supplements. Food supplements do not replace a balanced, varied diet.
