Tuesday, April 21, 2026

What are Functional Foods?

Functional foods can be widely described as processed food that provides medical or health benefits as well as a reduction in disease risk. There is no universal definition of functional food, but in the context of their benefits, a hallmark feature is their disease-preventing ability alongside their nutritional and health-promoting benefits. They are not considered preventative or curative by themselves and are typically not essential to the diet.

The history of the term functional foods

The term functional foods, and later “nutraceutical” was first coined in Japan in the early 1980s. Functional foods overlap with other terms alongside nutraceuticals, and include “vitafoods”, “medical foods”, “probiotics”, and “pharmafoods”.

Today, functional foods cover a wide variety of food types and are considered to be those that are fortified, enriched, or enhanced foods; it is by way of enhanced nutritional profiles that these foods provide health benefits that go beyond providing essential nutrients (vitamins and minerals) when they are consumed at a threshold amount as part of a varied diet, regularly.

Japan is also the first country to have devised a specific regulatory approval process for functional foods. The term food for specified health use (FOSHU) was coined and established in 1991. This concept then rapidly expanded to different parts of the world.

Subsequently, there is a great variation across the world with regards to the regulation of functional foods, and they have not been well established. There are also distinct differences in the approach to functional foods between legislators across the world.

Variations in functional food definitions and legislation across the world

The US Food and Drugs Administration (FDA) in the USA has a regulatory scheme that does not recognize functional foods to be a distinct category and does not provide a legal definition of functional foods. Despite this, several working definitions have been developed by organizations which include the American Dietetic Association (ADA), the International Food Information Council (IFIC), and the Institute of Food Technologists (IFT).

However, within the European Union, a regulation on nutrition and health claims came into force in 2007. Under the regulation, health claims are subject to preapproval, involving scientific assessment by the European Food Safety Authority (EFSA).

The adoption of regulation for the use of nutritional claims for foodstuffs harmonized EU-wide rules for the use of health and nutritional claims on foodstuffs. The main objective of this regulation ensure that food claims are substantiated by scientific evidence and are clear to the consumer.

The EFSA, Unlike the FDA, defines functional foods as “a food, which beneficially affects one or more target functions in the body, beyond adequate nutritional effects, in a way that is relevant to either an improved state of health and wellbeing and/or reduction in risk of disease.

A functional food can be a natural food or food to which a component has been added or removed by technological or biotechnological means, and it must demonstrate their effects in amounts that can normally be expected to be consumed in the diet.” However, they are as yet, not covered by any specific legislation except for general food legislation.

Japan is the only country in the world that recognizes functional foods as a distinct category and the Japanese functional food market is considered to be one of the most advanced, globally.

 Functional Foods

 Functional products – functions and benefits

Bioactive compounds are a typical hallmark present in significant quantities in functional foods. Broadly speaking, these include foods enriched with dietary fiber, omega-3 polyunsaturated fatty acids, carotenoids, as well as those supplemented with probiotics and prebiotics, those capable of lowering cholesterol, for example. The table below summarises a range of functional products and their effects on the body:

 

ngredient Functional product Functions

Dietary fiber

Oat, brown, grits, and flour – including any products derived from them such as oatmeal, cereal, and bread; fruit jams, cured sausages, and fish products; fermented milk drinks contain Lactobacillus plantarum, and wholegrain oat; fruit drinks with oat β-glucans.

Lowers concentration of blood glucose (4 g/day of β-glucan from cereals) and cholesterol (3g of soluble dietary fiber from oats), reduces constipation symptoms (threshold quantities include those containing 8.3 g of fermentable fiber and 9.7 g of nonfermentable fiber per 100 g).

Omega-3 polyunsaturated fatty acids (PUFA)

Oil; margarine; bread; pasta; milk-based drinks; chocolate; and supplemented fruit juices (those supplemented with docosahexaenoic acid & eicosapentaenoic acid)

Omega-3 FA (>2 g/day) has been shown to lower the concentration of blood triglycerides as well as produce hypotensive and arhythmic effects. Supplementation of DHA and EPA may also improve health and aid in nerve cell membrane regeneration; This can slow down the aging of the brain and prevent dementia

Phytoestrogens

Miso; tempeh; tofu; soy-based products such as milk; oil; imitation meat; cereal bars; whole-grain cereal products; and bread that contain rye and flaxseed

Phytoestrogens have some weak estrogenic effects which can help aid symptoms of menopause; this can subsequently improve hyperglycemia, glucose tolerance as well as circulating insulin concentration

Natural antioxidants

Fortified breakfast cereals; milk-based drinks; margarine; and fortified pasta

Are thought today the onset of cardiovascular and neurological diseases, cataracts, some types of cancer, and some non-communicable diseases

Probiotics and prebiotics—fructans, inulin, and resistant starch

Vegetable juices; cheeses; ice cream; frozen dessert; fermented dairy products such as yogurt; kefir; and buttermilk; fermented fruit; kombucha; and fermented meats

Probiotics can influence and regulate the immune system as well as improve immune function. They are also instrumental in the treatment of constipation, diarrhea, and the management of irritable bowel diseases such as Crohn's disease as well as irritable bowel syndrome and diverticular disease. Prebiotics such as fructans can also facilitate the maintenance of good bacteria and facilitate absorption of calcium, iron, copper, magnesium, and phosphorus (4-8g/day of fructans)

Carotenoids—lutein and zeaxanthin

Eggs and eggs products; canned corn; cornmeal

Lutein can react with free radicals and protect low-density lipoproteins against oxidative processes. These are associated with the risk of atherosclerosis and ischemic heart disease; carotenoids, especially lutein (≥4 mg/day), are essential in the prevention (prophylaxis) of age-related sight deterioration

Plant sterols and stanols

Margarine, yogurt, cream cheese, yogurt drinks, mature cheeses, milk-based drinks, meat products, soy or rice-based drinks, sources for salads, rye bread, chocolate, and mayonnaise

Plant sterols (0.8 g/d) or stanols (1–3 g/d) decrease total blood cholesterol between 5-11% and LDL by 16%. Stanols can lower thrombocytes aggregation which is associated with the reduction of total cholesterol and LDL

 

 

 

 

This is only for your information, kindly take the advice of your doctor for medicines, exercises and so on.   

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Tuesday, January 07, 2025

The Benefits of Functional Nutrition

Functional foods have been extensively researched over the years regarding their contribution to health and nutrition, and they continue to lead the field of natural medicine research. Studies have repeatedly shown that a diet rich in functional foods is the best for protecting the body against chronic diseases, such as heart disease, cancer, osteoporosis, diabetes, and stroke. But what exactly is considered functional food, and how can you incorporate more of it into your diet? That's exactly what we will explain to you today, including the many health benefits of maintaining a diet that includes as much functional food as possible.

What is Functional Food? 
While there is no absolute definition for this category of food, the general definition suggests that most functional foods provide health benefits beyond "basic nutrients." That is, they supply micronutrients and macronutrients, such as vitamins, minerals, carbohydrates, fats, and proteins. Functional foods provide these essential components along with compounds not found in other foods, such as omega-3 fatty acids, dietary fiber, probiotics, and antioxidants.

There are such foods that are even intentionally produced with enhanced nutritional value in mind. These can include vegetables, fruits, herbs, or spices, but not exclusively. Even fatty fish, such as salmon, or organ meats, such as liver, can be considered functional foods.


Is Fortified Food Considered Functional Food?  
As we understand from the general definition, functional foods are those that provide more than basic nutrients. So, can fortified food be considered functional food? Since there is no precise definition of this term, there is also no legislation specifying what counts as functional food and what does not. The "fortified food" label often serves as a way for food manufacturers to increase profits rather than a genuine claim about the health level of the product they offer. If it is attached to processed food, it does not necessarily mean it is a functional food product. In fact, functional food does not need to be fortified with anything because it inherently contains what is required to be considered healthy. 
 
The Health Benefits of Functional Food 
Every food item has its own health benefits, but functional food provides some unique ones that are hard to find in general sources: 
 
Antioxidants (such as carotenoids, flavonoids, lycopene, anthocyanins, and polyphenols) that fight free radicals. 
 
Ability to reduce inflammation. 
 
Helps prevent diseases, such as cardiovascular problems, neurological issues, cancer, and even depression. 
 
Supports the health and function of the digestive system, thereby improving the function of the immune system. 
 
Provides probiotics and prebiotics to the body. 
 
Reduces the number of pathogens and harmful bacteria in the body.


How does functional food achieve all this? 
The truth is that each food item has a slightly different way of helping the body, depending on the compounds it contains. However, in general, here are some of the ways functional food can help the body avoid diseases: 
 
Prevents the negative effects of stress by providing vitamin B, magnesium, and omega-3 fatty acids. 
 
Protects the brain from oxidative damage, contributing to cognitive and mental health. 
 
Balances cholesterol and blood pressure levels. 
 
Aids in the absorption of nutrients from the food we eat. 
 
Helps build strong bone mass, for example, by reducing blood acidity levels, which causes calcium to leach from bones. 
 
Regulates blood sugar levels thanks to fiber and anti-inflammatory compounds. 
 
Helps maintain weight and prevent obesity, which leads to diseases.

Which Functional Foods Are the Most Recommended? 
To start consuming more functional food, you need some examples. We recommend starting with some from the following list and making sure to incorporate them as much as possible into your diet. 
 
Foods with High Antioxidant Levels 
What is Functional Food: Brightly colored fruits and vegetables 
These include a wide range of brightly colored fruits and vegetables, such as leafy greens, berries of all kinds, oranges, papayas, peppers, sweet potatoes, carrots, and cruciferous vegetables, like broccoli or Brussels sprouts. These are the best sources of antioxidants, which actually give these foods their vibrant colors and protect the body’s cells from oxidative damage.

Herbaceous Green Foods 
Various herbs, including sea vegetables like spirulina, are packed with phytonutrients, vitamins, and minerals, some of which are hard to find in other plant-based foods. 
 
Foods High in Fiber 
Fiber is crucial for digestion and gut health, and it also helps regulate appetite. Fiber can be found in vegetables, fresh fruits, legumes, whole grains, seeds, and nuts. 
 
Probiotic Foods 
These include fermented and cultured foods, such as yogurt, kefir, sauerkraut, and more. Probiotics play key roles in the body, such as protecting the intestinal walls, aiding nutrient absorption, preventing digestive issues, and fighting infections. 
 
Prebiotic Foods 
Prebiotics are the food for probiotics. They include carbohydrates and fibers that "resist" digestion but feed the good bacteria in our bodies. Some examples of prebiotic foods are leeks, onions, garlic, bananas, potatoes, asparagus, artichokes, beans, and oats. Generally, consuming raw vegetables is one of the best ways to introduce prebiotics into your body. 
 
Omega-3 Fatty Acids 
Omega-3s help reduce the risk of heart disease, depression, joint pain, and more, in addition to being essential for maintaining brain and cognitive function. The best way to add more omega-3 fatty acids to your diet is by consuming fatty fish, such as salmon, sardines, and mackerel, as well as walnuts, chia seeds, and flaxseeds. 
 
Seeds and Nuts 
Although mentioned in previous sections, they deserve special attention as they are considered one of the best ways to add healthy fats and fiber to your diet simultaneously, protecting the heart, brain, and digestive system at the same time. They are also relatively filling compared to other snacks, and you can choose from a wide variety of tasty options, such as almonds, cashews, and walnuts. You can also add chia seeds, flaxseeds, or hemp seeds to salads.


Bone Broth 
Bone broth contains a high amount of amino acids like glycine, arginine, and proline, as well as vitamins, minerals, collagen, electrolytes, and even antioxidants.

How to Regularly Incorporate More Functional Foods? 
Now that you are familiar with the recommended foods and what they can do for you, all that remains is to incorporate them into your regular diet. Here are some tips to help you do this effectively: 
 
1. Base Your Diet on Plant-Based Foods 
To obtain enough fiber, antioxidants, and other nutrients that benefit your body, you need to ensure you consume more plants than meat and animal products. The key word here is balance, as you also need to consume enough protein and healthy fats, but generally, it’s better for your plate to contain more plant-based foods. 
 
2. Choose the Right Fats 
Try to minimize the use of foods with trans fats, such as processed vegetable oils (soybean, canola, or sunflower oil), and opt for foods with healthy fats, like coconut oil, olive oil, or avocado. 
 
3. Choose High-Quality Animal Products
If you consume a lot of meat, eggs, fish, and cheese, ensure you purchase the highest quality and most natural products available, which will have a higher content of nutrients and far fewer hormones and additives your body does not need. 
 
4. Don’t Fill Up on Unhealthy Foods 
One advantage of adding more functional food to your diet is that it will replace other foods you might have been consuming that don’t benefit you. Snacks like nuts, for example, can help you consume fewer sweets or salty snacks that aren’t healthy for you, thereby reducing your intake of sugar and sodium while increasing nutrients. Check the labels of the products you consume and avoid those where ingredients like fructose, dextrose, or anything paired with "syrup" are listed at the top.

This is only for your information, kindly take the advice of your doctor for medicines, exercises and so on.   

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