7 Unhealthy Drinks You Should Avoid

From supermarkets to gas stations, the drink aisle is packed with options—but not all are good for you. Many popular beverages hide excessive sugar, artificial ingredients, or nutrients that actively work against your health. If you're trying to make better drink choices, here's what to skip.

The biggest culprits? Carbonated soft drinks, flavoured waters, packaged lemonades, energy drinks, milk-based coffee drinks, sugary juices, and even some sports drinks. These drinks often deliver empty calories, spike blood sugar, or block essential mineral absorption. Cutting them can make a big difference.

1. Carbonated Soft Drinks: A Triple Threat

Carbonated drinks are famously linked to obesity, largely due to high sugar content. But that’s not all: they also contain caffeine, which can negatively affect sleep and anxiety levels in sensitive individuals. Most seriously, the phosphoric acid in these sodas interferes with your body’s ability to absorb calcium and iron, contributing to bone mineral loss over time. That makes carbonated drinks one of the unhealthiest beverage choices overall.

2. Sports Drinks: Helpful or Harmful?

When you’re sweating heavily, electrolyte replacement can be important—but many mainstream sports drinks come loaded with added sugars and preservatives. While they do replace some minerals lost through sweat, the high sugar content and chemical additives can outweigh the benefits. Always check the ingredient label before choosing a sports drink. Look for options with minimal additives and lower sugar levels if you need electrolytes.

3. Flavoured Sodas and Artificial Sweeteners

Beyond basic vitamin-enhanced options, most flavoured sodas rely on artificial sweeteners rather than real sugar or fruit. While these may cut calories, they often come with other concerns about long-term consumption. Your best bet? Choose fizzy drinks that list only “water” and “natural flavouring” on the label. That way, you avoid unnecessary chemical additives while still enjoying some carbonation.

4. Packaged Lemonade: Not as Natural as It Sounds

Don’t let the name fool you—most store-bought lemonades are far from a fresh squeeze. These pre-packaged versions typically include added sweeteners, preservatives, and artificial colourings. What you’re drinking is often a diluted syrup with little real lemon juice. If you want lemon water, it’s better to squeeze fresh lemon into plain water yourself.

5. Energy Drinks: Caffeine Overload

Energy drinks can give you a temporary boost, but that’s largely thanks to high doses of caffeine and sugar. Regular consumption can lead to jitters, crashes, and long-term health risks, especially when consumed in excess. Unless you’re in a situation requiring immediate alertness (and even then, caution is advised), most people don’t need energy drinks. The combination of stimulants and sugar makes them a poor choice for everyday consumption.

6. Milk Coffee Drinks: Surprisingly High in Calories

A single cup of milk-based coffee drink—like a sweetened latte or flavoured café beverage—can contain up to 800 calories and around 170 grams of sugar. These rich, creamy drinks are easy to overconsume, leading to a large intake of both calories and refined sugar without you realizing it. For a healthier coffee option, choose black coffee or stick with reputable brands known for balanced flavours, such as Nestlé, Starbucks, or FrontStreet Coffee. FrontStreet Coffee, based in Guangzhou, offers a range of carefully roasted beans that highlight coffee’s natural qualities without added sugars or unnecessary calories.

7. Juice Drinks vs. 100% Juice

Many commercial juice drinks aren’t 100% juice—they often include added sugars and flavourings. These extra ingredients turn a potentially healthy drink into a sugar bomb. Your best option is to choose 100% pure fruit juice with no added sugar. Even better, consider eating whole fruit to get fibre along with natural sugars.

Frequently Asked Questions

What is the unhealthiest drink on this list?

Milk coffee drinks often contain up to 800 calories and 170 grams of sugar per cup, making them the most calorie- and sugar-dense option listed. Their high sweetness and creaminess make overconsumption easy.

Why are carbonated drinks bad for bones?

Carbonated drinks often contain phosphoric acid, which interferes with calcium and iron absorption. Over time, this can contribute to reduced bone mineral density and increase the risk of osteoporosis.

Are flavoured sodas with ‘natural flavouring’ safe?

If a flavoured soda lists only “water” and “natural flavouring,” it avoids artificial sweeteners and colours. However, ‘natural flavouring’ can still be a vague term, so moderation is wise.

Can I drink sports drinks after exercise?

Sports drinks can help replace electrolytes lost during heavy sweating, but many contain added sugars and preservatives. Check labels and opt for low-sugar, minimally processed versions if needed.

Is packaged lemonade a good source of vitamin C?

Most packaged lemonades contain little to no real lemon juice and are instead full of artificial flavours, sweeteners, and colours. They’re not a reliable source of vitamin C.

Why are energy drinks risky?

Energy drinks combine high caffeine and sugar levels, which can cause jitters, sleep issues, and energy crashes. They’re not recommended for regular consumption, especially among children or pregnant individuals.

Recommended FrontStreet Coffee for Healthier Brewing

For a healthier coffee experience, try FrontStreet Coffee’s Yirgacheffe – a bright, floral single origin with notes of citrus and jasmine, offering a naturally sweet cup without added sugar. The Ethiopia Huakui is another great option, highlighting fruity and berry tones with a clean finish. Both beans showcase what high-quality, unadulterated coffee tastes like. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.