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Pathfood Sustainable production chain of selenium-enriched functional food

Can vertically farmed vegetables contain more selenium? 🌱Vertical farming isn’t just about saving space - it’s also abou...
25/05/2026

Can vertically farmed vegetables contain more selenium? 🌱

Vertical farming isn’t just about saving space - it’s also about gaining control over the nutritional value of crops, including their selenium content.

In traditional farming, selenium levels in vegetables depend on soil composition and environmental factors. In vertical farms, grown in tightly controlled indoor environments, conditions such as substrate, lighting, and hydration can be precisely managed, allowing for targeted biofortification.

🔬 Selenium biofortification in these settings:
– can be more efficient than in open-field farming,
– helps reduce nutrient loss,
– ensures more consistent quality of produce.

While the technology is still evolving, vertical farming offers a glimpse into the future of functional food: healthier, safer, and more predictable.

Does long-term storage affect the micronutrient content of vegetables? 🥕📦Yes. Storage time can influence the nutritional...
25/05/2026

Does long-term storage affect the micronutrient content of vegetables? 🥕📦

Yes. Storage time can influence the nutritional value of vegetables, although micronutrients such as selenium are generally more stable than vitamins.

The most noticeable changes usually affect vitamin C and certain bioactive compounds, which gradually decline after harvest. Micronutrients tend to remain present for longer, but their bioavailability may still depend on storage conditions.

Key factors include:
• storage temperature,
• exposure to light,
• humidity levels,
• time between harvest and consumption.

Root vegetables such as carrots and beetroot tolerate longer storage relatively well, while leafy vegetables lose nutrients more quickly.

Choosing fresh or seasonal vegetables and storing them properly is one of the simplest ways to maintain their nutritional value 🌱

Does the way you cut vegetables affect their nutritional value? 🔪🥦Yes, even small preparation steps like cutting can inf...
25/05/2026

Does the way you cut vegetables affect their nutritional value? 🔪🥦

Yes, even small preparation steps like cutting can influence how many nutrients remain in vegetables before they are eaten.

Cutting increases the surface exposed to air and light, which can accelerate the loss of certain vitamins and bioactive compounds. The smaller the pieces, the greater the potential nutrient loss-especially in leafy vegetables.

Timing also matters. Storing chopped vegetables for longer periods before consumption may reduce some of their nutritional value.

Micronutrients such as selenium are generally more stable than vitamins, but preparation methods can still influence their availability in the diet.

Cutting vegetables shortly before cooking or eating is a simple way to help preserve their nutritional quality 🌱

Do children need more selenium than adults relative to body weight? 👧Yes, when calculated per kilogram of body weight, c...
25/05/2026

Do children need more selenium than adults relative to body weight? 👧

Yes, when calculated per kilogram of body weight, children often require higher amounts of many micronutrients, including selenium, than adults. This is linked to periods of rapid growth and development.

Selenium plays an important role in:
• immune system function,
• protection against oxidative stress,
• thyroid hormone metabolism,
• nervous system development.

Although total daily selenium requirements are lower in children than in adults, their bodies need relatively higher intake per body weight.

This is why a balanced diet rich in natural micronutrient sources is particularly important during childhood-especially in regions of Europe where selenium availability in soil is lower.

How can stress and lack of sleep affect the body’s micronutrient needs? 😴⚡Chronic stress and sleep deprivation affect no...
25/05/2026

How can stress and lack of sleep affect the body’s micronutrient needs? 😴⚡

Chronic stress and sleep deprivation affect not only wellbeing, but also how the body functions on a metabolic level.

During periods of stress, the body may use more nutrients involved in nervous system regulation, immune support and protection against oxidative stress. This includes micronutrients such as:

• selenium,
• magnesium,
• zinc,
• iron.

Insufficient recovery may also influence:

• hormone balance,
• inflammatory processes,
• appetite and food choices,
• nutrient utilisation efficiency.

Stress does not automatically cause deficiencies, but long-term overload may increase the importance of a balanced diet and regular meals.

This is why metabolic health depends not only on what we eat, but also on sleep, recovery and everyday lifestyle habits 🌱

Does the time of day affect how the body uses nutrients? ⏰🥗More and more studies suggest that the body does not function...
25/05/2026

Does the time of day affect how the body uses nutrients? ⏰🥗

More and more studies suggest that the body does not function the same way throughout the day. Our metabolism follows circadian rhythms that influence digestion, hormone regulation and nutrient utilisation.

In the morning, the body is generally more efficient at energy metabolism, which is why a breakfast rich in protein, fibre and micronutrients may support concentration and stable energy levels during the day.

In the evening, metabolic processes tend to slow down, and heavy late meals may be harder to digest. However, there is no single “perfect” time to consume specific nutrients.

The way micronutrients such as selenium, iron or zinc are utilised also depends on:
• overall meal composition,
• interactions with other minerals,
• meal regularity,
• individual lifestyle and daily rhythm.

This is why nutrition research increasingly focuses not only on what we eat, but also on when we eat 🌱

Why do vegetables from local markets sometimes taste different from supermarket ones? 🥕Many people notice that vegetable...
25/05/2026

Why do vegetables from local markets sometimes taste different from supermarket ones? 🥕

Many people notice that vegetables bought at local markets often have a stronger flavour and aroma than those from supermarkets. Why does this happen?

One of the key factors is freshness. Locally sold vegetables are often available shortly after harvest, helping preserve natural compounds responsible for taste and aroma.

Other important factors include:
• transport time,
• storage conditions,
• temperature and light exposure,
• time spent in warehouses and cold storage.

During long storage periods, some bioactive compounds gradually change, which can affect both flavour and, in some cases, nutritional quality.

This does not mean supermarket vegetables are “worse.” Modern storage systems help maintain product quality for longer periods. In practice, what matters most is maintaining a varied diet rich in vegetables-regardless of where they are purchased 🌱

Does reheated food lose its nutritional value? 🍲It depends on the type of nutrients and on how the meal is stored and re...
25/05/2026

Does reheated food lose its nutritional value? 🍲

It depends on the type of nutrients and on how the meal is stored and reheated.

Some vitamins, especially vitamin C and certain B vitamins, are sensitive to heat and may gradually decrease during reheating. Micronutrients such as selenium, zinc and iron, however, are much more heat-stable and generally remain present even after the meal is warmed again.

Other important factors include:
• storage temperature,
• time between cooking and consumption,
• number of reheating cycles.

Proper refrigeration and avoiding repeated reheating are key. In practice, well-stored leftovers can still be a nutritious part of a healthy diet.

This is good news not only for nutrition, but also for reducing food waste 🌱

Does the body “signal” nutrient deficiencies? 🤔Fatigue, poor concentration, weaker immunity or changes in skin and hair ...
25/05/2026

Does the body “signal” nutrient deficiencies? 🤔

Fatigue, poor concentration, weaker immunity or changes in skin and hair condition are often interpreted as signs of vitamin or micronutrient deficiencies. But can the body really communicate deficiencies this way?

Partly yes, but many of these symptoms are highly non-specific. This means they may have multiple causes and do not necessarily indicate a deficiency of a particular nutrient.

For example:
• chronic fatigue may be linked to iron deficiency, but also to stress or lack of sleep,
• weaker immunity can be influenced by both diet and lifestyle,
• changes in hair or skin condition are not always caused by micronutrient deficiencies.

A common myth is that the body “craves” specific foods when it lacks certain nutrients. In reality, cravings are more often related to habits, emotions or energy balance than to precise biological signalling.

This is why laboratory testing and professional assessment remain the most reliable ways to identify nutritional deficiencies.

The body may send signals, but interpreting them requires a broader perspective 🌱

Do packaged ready-to-eat salads retain their nutritional value? 🥗Pre-packed salads and cut vegetables are convenient, bu...
25/05/2026

Do packaged ready-to-eat salads retain their nutritional value? 🥗

Pre-packed salads and cut vegetables are convenient, but many people wonder whether they still retain their nutritional value after washing, cutting and packaging.

The answer is yes, although some nutrients may gradually change during storage.

The most sensitive components are usually:
• vitamin C,
• certain antioxidants,
• bioactive compounds exposed to oxygen and light.

Cutting vegetables increases their contact with air, which may accelerate oxidation processes and reduce some nutrients over time. Important factors include:
• storage temperature,
• packaging conditions,
• time between preparation and consumption.

Micronutrients such as selenium are generally more stable than vitamins and tend to remain present even after processing.

In practice, ready-to-eat salads can still be a valuable part of a healthy diet, especially if they help increase daily vegetable intake 🌱

Why do some vegetables turn brown after being cut? 🔪This is the result of natural chemical reactions that occur when pla...
25/05/2026

Why do some vegetables turn brown after being cut? 🔪

This is the result of natural chemical reactions that occur when plant tissues are damaged. Once a vegetable is cut, its inner tissues are exposed to oxygen in the air, activating enzymes responsible for so-called enzymatic browning.

This process commonly affects vegetables and fruits rich in phenolic compounds, such as potatoes, eggplants and mushrooms. An enzyme called polyphenol oxidase triggers oxidation reactions that lead to darker colouring.

The speed of browning depends on factors such as:
• oxygen exposure,
• temperature,
• moisture levels,
• pH conditions.

That is why adding lemon juice or storing cut vegetables in cooler temperatures can help slow the process.

Although browning may look unappealing, it does not necessarily mean the food is unsafe, it is primarily a natural chemical reaction 🌱

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