Summer wellness: 8 common supplement myths (and what the evidence really says)

By Harley Stabler

July 21, 2026 6 min read

Summer wellness: 8 common supplement myths (and what the evidence really says)

When summer arrives, many of us naturally spend more time outdoors, enjoy lighter meals and settle into a different routine. It's also the time of year when supplement use often takes a back seat.

After all, if you're eating more greens, getting more sunshine and feeling healthier, do you really need to keep taking your supplements?

The reality is a little more nuanced. While summer can influence your lifestyle and eating habits, it doesn't mean your nutritional needs simply disappear.

Some common beliefs about summer nutrition are rooted in truth, while others overlook the bigger picture. Let's take a closer look at some of the most common myths – and what the evidence actually tells us.

Myth 1: “I spend more time outside, so I don't need Vitamin D.”

This is probably the most common assumption – and it's easy to see why.

Your body produces Vitamin D when your skin is exposed to sunlight, so summer certainly gives you more opportunity to make it naturally.

But here's the catch: there isn't a set amount of time in the sun that guarantees you'll produce enough. How much Vitamin D your body makes depends on a range of factors, including:

Where you live
The strength of the sun
The time of day
Your skin tone
Your age
How much skin is exposed
Whether you're wearing sunscreen
How long you're actually outside

Did you know? 🤔

Even in summer, many of us spend surprisingly little time in direct sunlight. Whether you're commuting, working indoors, sitting under a parasol, wearing sunscreen or covering up in the hottest part of the day, there are plenty of reasons why your body may produce less Vitamin D than you expect.

Summer can certainly help, but more sunshine doesn't automatically mean optimal Vitamin D levels.

What does the NHS say?

According to the NHS:

Most people can produce enough Vitamin D from sunlight between late March/early April and the end of September.
During autumn and winter, everyone should consider taking a daily Vitamin D supplement.
Some people, including those who spend little time outdoors, cover their skin or have darker skin, may benefit from supplementation throughout the year.

Takeaway: More sunshine doesn't automatically mean optimal Vitamin D levels. ❌

Myth 2: "I eat more fruit and salads in summer, so my nutrition is covered."

A colourful, varied diet should always be the starting point for good nutrition. 🥗

Summer often makes healthy eating feel easier, with fresh berries, tomatoes, leafy greens and seasonal vegetables all readily available.

But nutrition isn't simply about eating more fruit and vegetables.

Busy schedules, travel, eating out, skipped meals and convenience foods can all affect the overall balance of your diet. Research also suggests that the nutrient content of some crops has changed over time due to a combination of modern farming practices, crop selection and environmental factors.

That doesn't mean healthy foods have become "nutrient-empty", far from it. It simply highlights why eating a wide variety of foods remains important.

Supplements aren't designed to replace a healthy diet. Instead, they can help complement it when life isn't perfectly balanced every day.

Takeaway: A healthy diet comes first, but consistency matters more than perfection.

Myth 3: "I'll make up for it when I get back."

When routines change, habits often disappear too.

Whether you're away for a weekend or spending two weeks abroad, it's easy to leave supplements behind with the intention of restarting later.

The reality is that most healthy habits work best when they're consistent over time.

Think about brushing your teeth, staying active, or drinking enough water. Missing a day isn't a problem, but maintaining the habit is what delivers long-term benefits.

Packing your supplements alongside your toothbrush or toiletries is a simple way to keep your routine going without giving it much thought. 🪥

Takeaway: Consistency beats perfection.

Myth 4: "I'm sweating more, so drinking more water is enough."

Hydration becomes especially important during warmer weather. 💦

While water should always be your first choice, sweating doesn't just mean losing fluids – it also means losing electrolytes such as sodium, potassium and magnesium.

If you're exercising, spending long periods in the heat or travelling, replenishing fluids and electrolytes may help support hydration.

For most people going about their normal daily routine, a balanced diet alongside regular fluid intake will usually provide what they need.

NHS hydration advice

The NHS recommends drinking enough fluids throughout the day so that your urine is pale yellow. During hot weather, exercise or illness, you may need to drink more than usual.

Takeaway: Water is essential, but during periods of heavy sweating, electrolytes may also play a role.

Myth 5: "I'm only away for a week, so my gut won't notice."

Travel often means different mealtimes, unfamiliar foods, disrupted sleep, and changes to your daily routine.

All of these factors can influence how your digestive system feels.

If you're already taking a probiotic as part of your routine, continuing it while you're away may be easier than stopping and restarting.

Likewise, staying hydrated, eating fibre-rich foods where possible and keeping meals regular can all help support digestive well-being while travelling.

Takeaway: Your gut notices changes in routine just as much as you do.

Myth 6: "Summer means I naturally have more energy."

Longer days often encourage us to do more.

More social events, more travel, more time outdoors and later evenings can all make summer feel energising.

Ironically, they can also leave us feeling more tired. 💤

Less sleep, dehydration, changes to meal patterns and busy schedules can all affect how energetic you feel from day to day.

Rather than relying on caffeine alone, focus on the foundations:

Stay hydrated.
Eat regular, balanced meals.
Prioritise good-quality sleep.
Keep moving.
Maintain healthy daily habits.

Takeaway: Summer can be busy as well as enjoyable; looking after the basics still matters.

Myth 7: "Supplements only matter when I'm feeling run down."

Supplements aren't designed as a quick fix.

Many people choose to take them as part of their everyday wellness routine, alongside a balanced diet and healthy lifestyle.

Whether it's a multivitamin, omega-3, magnesium, or Vitamin D, consistency is generally more important than only taking supplements when you feel like you "need" them.

Takeaway: Think of supplements as supporting your routine, not replacing healthy habits.

Myth 8: "Natural always means better."

It's easy to assume that if something is labelled "natural", it's automatically the best choice.

In reality, the quality of a supplement depends on much more than marketing claims. Ingredients, dosage, bioavailability, manufacturing standards, and independent testing can all make a difference.

That's why it's worth choosing products from reputable brands that are transparent about what's inside their supplements and how they're made.

Takeaway: When choosing supplements, quality matters just as much as what's on the label.

Final thoughts

Summer naturally changes the way we eat, travel and spend our time – but it doesn't mean putting your well-being on hold.

A balanced diet should always come first, and supplements aren't a substitute for healthy eating. But if they're already part of your routine, staying consistent can be one simple way to support your well-being throughout the season.

Whether you're relaxing at home, heading abroad or making the most of longer days, small daily habits can make all the difference.

Ready to support your summer routine?

Explore our range of vitamins, minerals and wellness essentials to find the products that fit naturally into your everyday life.