Snacking: A Small Habit With a Big Impact on Our Health

Walk into almost any office today and you’ll likely find snacks everywhere — biscuits in meeting rooms, candy bowls at reception desks, pastries next to coffee machines, protein bars in kitchens or drawers, and crisps or sweet treats available throughout the day. Having visited quite a few workplaces and delivered presentations on health and nutrition, I’ve seen firsthand how common snacking has become in modern life.

At the same time, I have also seen some truly positive examples. There are workplaces that offer employees fresh fruit, berries, nuts, seeds, and other healthier snack options that genuinely support energy, concentration, and wellbeing. So while modern snacking culture certainly has its challenges, there are also encouraging signs that many companies are becoming more health-conscious and supportive of employee wellbeing.

Many of us consider ourselves “snackers”. Research suggests that around 25% of our daily calories may come from snacks alone. That is a significant portion of our daily food intake — not just nutritionally, but also metabolically.

How Snacking Culture Has Changed

Growing up in the 1980s and early 1990s, things looked very different. Petrol stations mainly sold petrol. Grocery stores had limited options for portable snack foods. Eating while walking, driving simply wasn’t common for most people.

Today, food is available everywhere:

• petrol stations,

• supermarkets,

• office kitchens,

• vending machines,

• cafés,

• airports,

• gyms,

• etc.

Modern food environments constantly encourage us to eat “on the go.” Convenience foods and snack marketing are now deeply embedded into daily life. While it may not be realistic to completely eliminate snacking, we can absolutely make better choices around what we snack on and why we snack.

Is Snacking Really a Problem?

Not necessarily.

Snacking itself is not automatically unhealthy. In fact, snacks can sometimes help support energy levels, concentration, blood sugar balance, and nutrient intake.

The bigger question is: What are we snacking on, how often, and why?

Many modern snacks are highly processed and designed to be hyper-palatable — rich in sugar, salt, refined carbohydrates, unhealthy fats, and additives, while being low in fibre, protein, vitamins, and minerals. These foods are often easy to overeat and may leave us unsatisfied shortly after eating them.

What Happens in the Body When We Graze All Day?

From a biological perspective, constant grazing can affect several systems in the body.

Every time we eat — especially foods and drinks rich in refined carbohydrates and sugar — our blood sugar levels rise. In response, the pancreas releases insulin to help move glucose into cells.

If we snack continuously throughout the day, especially on ultra-processed foods, the body may remain in a more constant “fed state.” This can lead to:

• more frequent blood sugar spikes and crashes,

• increased cravings,

• difficulty recognising true hunger and fullness signals,

• overeating later in the day,

• and in some individuals, poorer metabolic health over time.

Constant grazing may also reduce the digestive system’s natural rest periods. Some research suggests that late-night snacking in particular may negatively impact blood sugar regulation and blood fat levels.

However, context matters. A handful of nuts and berries is metabolically very different from repeatedly eating sweets, pastries, crisps, or sugary drinks throughout the day.

Before We Blame Snacks — Let’s Look at Main Meals

One of the most important questions is: Are our main meals actually satisfying and balanced enough?

Breakfast, lunch, and dinner should provide enough total energy for our needs, comprising foods consisting:

• protein,

• healthy fats,

• fibre-rich carbohydrates

When meals are balanced and nourishing, many people naturally feel less need to snack constantly. But when meals are low in protein, low in fibre, or insufficient overall, hunger quickly returns.

For example:

• A breakfast of sugary cereal or toast with jam may digest quickly and leave us hungry within a couple of hours.

• A lunch consisting of a hot dog, pastry, or processed convenience food may lack protein, fibre, and micronutrients, leading to energy crashes and strong cravings later in the day.

This often creates a cycle of:

1. under-fuelling earlier in the day,

2. intense hunger later,

3. overeating in the evening,

4. followed by more cravings and snacking.

In many cases, improving meal quality naturally reduces excessive snacking.

Who Might Benefit From Snacks?

Not everyone should avoid snacks. For some people, snacks can play an important role.

People who may genuinely benefit from snacks between meals include:

• growing children and teenagers,

• athletes and physically active individuals,

• people with high energy needs,

• individuals with long gaps between meals,

• older adults with smaller appetites,

• and some people managing blood sugar levels who benefit from more evenly distributed food intake.

For active children and athletes especially, snacks can help provide additional energy, protein, and nutrients needed for growth, recovery, and performance.

The goal is not to fear snacks — but to make them more nourishing.

The Real Problem: Snack Quality

The issue is often not the snack itself, but the quality of the snack. If roughly 25% of our calories come from snacks, then those foods have a major impact on:

• energy levels,

• nutrient intake,

• gut health,

• blood sugar balance,

• heart health,

• concentration,

• and long-term wellbeing.

A snack that contains protein, fibre, and healthy fats can help stabilise energy and support fullness. A snack built mostly from sugar, refined starch, and highly processed ingredients may do the opposite.

What the ZOE Snacking Research Found

Interestingly, there is still surprisingly little research specifically on snacking. Researchers at ZOE decided to investigate this further in their own snacking study.

Their findings were fascinating:

• The number of snacks and snack calories alone did not strongly predict poor health outcomes.

• Instead, low-quality snacks were associated with worse health markers.

• Late-night snacking (especially after 9pm) was linked with poorer blood sugar control and higher blood fat levels.

Overall, the message was encouraging: You do not necessarily need to stop snacking — but you may benefit greatly from snacking smarter.

Healthy Snacks Should Ideally Include…

The most satisfying snacks contain a combination of:

• protein,

• fibre,

• healthy fats,

  
  

For example:

• apple + nuts,

• yoghurt + berries + seeds,

• hummus + vegetables,

• rye bread + egg,

• kefir smoothie + chia seeds.

These combinations tend to support:

• steadier blood sugar,

• improved fullness,

• better concentration,

• and reduced cravings later in the day.

25 Smarter Snack Swaps

Small swaps repeated daily can make a surprisingly large impact on health, energy, cholesterol levels, gut health, and blood sugar balance.

Instead of…	Try swapping to…
Milk chocolate bar	Dark chocolate (70%+ cacao) with nuts
Crisps/potato chips	Roasted nuts or roasted chickpeas
Sugary breakfast bar	Apple with nut butter
Sweetened yoghurt	Plain Greek yogurt with fresh or frozen berries
Pastries	Boiled eggs with vegetables
Ice cream	Greek yoghurt with frozen berries, or cottage cheese blended with frozen berries
Candy	Dates with nuts
Sugary cereal snack	Chocolate banana nut butter bites
White bread sandwich	Rye bread with hummus or avocado and salmon
Sugary iced coffee	Coffee with milk and nuts on the side
Energy drink	Sparkling water with berries/citrus or 150ml of kombucha
Sugary smoothie	Homemade protein-rich smoothie with seeds
Cookies	Homemade cookies, like these hempseed and banana cookies
Cinnamon bun	Homemade muffins, why not try and make blueberry muffins
Processed protein bar	Handful of nuts and fruit or make your own protein bars
Sweetened granola	Plain oats with yoghurt and berries or make your own granola at home
Sugary soft drink	Kombucha or sparkling water
Fast-food milkshake	Kefir smoothie
Rice cakes	Seed crackers with hummus
Processed cheese snacks	Cottage cheese with cucumber
Sugary puddings	Chia pudding with berries
Fried snack foods	Edamame beans
Processed deli snack	Cooked chicken slices with veggies
Sugary bubble tea	Unsweetened tea with fruit
Drive-through snack meal	Homemade snack box with eggs, veggies, hummus, nuts

Questions Worth Asking Yourself

Instead of aiming for perfection, simply becoming more aware of your habits can already make a big difference.

Ask yourself:

• Could I add more protein to my snack? (for example Greek yoghurt, cottage cheese, eggs, kefir, nuts, seeds, hummus or leftover chicken)

• Could I increase fibre in my snacks? (berries, vegetables, fruit, rye bread, oats, seeds, beans, chickpeas)

• Could I reduce ultra-processed snack foods? (less candy, pastries, crisps, sugary drinks, highly processed bars and packaged snacks)

• Could I prepare one better option ahead of time? (boiled eggs, chopped vegetables, overnight oats, homemade trail mix of nuts, seeds and dried fruit, yoghurt pots with berries and chia seeds, roasted chickpeas)

Even changing just one or two snack habits per day can have a meaningful impact over time.

Snacking Smarter — Not Perfectly

Snacking is likely here to stay in modern society. The goal is not perfection or restriction.

The goal should be awareness.

When we begin to understand:

• why we snack,

• what our bodies truly need,

• and how different foods affect our energy, mood, concentration, hunger, and long-term health,

we can make choices that genuinely support wellbeing.

Sometimes the smallest habits — repeated daily — have the biggest impact.

If you are looking to improve your nutrition to support your health goals, whether it's to loose weight, have more energy and mental clarity, better digestive health, skin health, cardiovascular health, don't hesitate to reach out to me for personal nutrition counselling at info@katrinpeo.com.