Are Doughnuts Healthier Than Fruit Juice?

I had breakfast with some friends at the weekend, and seeing some cranberry juice on the table, thought I’d try some instead of my usual tea. Now cranberries are pretty sweet on their own – but this juice was so sickly sweet, I thought my teeth were going to fall out. I looked at the ingredients (should have done that first) and saw:

Ingredients: Water, Cranberry Juice from Concentrate (25%), Sugar, Vitamin C, Flavourings

Yep, sugar and flavourings added to an already sweet and flavourful drink! And why add vitamin C to a juice made from the very fruit that contains vitamin C?

How much sugar? In a 500ml bottle a total of 53.5 grams (nearly 2 oz) of sugar. There are 4 grams of sugar in a teaspoon, meaning this one little bottle contained almost 14 teaspoons of sugar! 14!

For comparison an original glazed Krispy Kreme doughnut (surely everyone would agree this is most definitely not a health food) contains 10g of sugar. In fact, the most sugary Krispy Kreme doughnut I could find (Butterscotch Fudge) contains 53g of sugar – marginally less than the bottle of cranberry juice. Yet we all see doughnuts as a bad food – and amazingly many people still push fruit juices as a health food.

The sugar pushers seem to try to get around the ridiculous sugar contents, by giving nutritional information based on a 100ml serve. But how many people have you seen with a 500ml bottle divide it into five servings? None, because almost everyone absentmindedly finishes the bottle. And how many people get a calculator out at the breakfast table?

PS these are the ingredients for the Krispy Kreme doughnut, that contains the same amount of sugar as the fruit juice (recognise many of these?!):

Doughnut: Wheat Flour, Dextrose, Vegetable Oil (Palm Oil,  Sunflower Oil), Water, Sugar, Wheat Gluten, Egg Yolks, Yeast, Skimmed Milk, Salt, Emulsifiers (E471), Preservative (E282), Stabiliser (E466), Flavourings.

Kreme Filling: Sugar, Vegetable Oil, Vegetable Shortening (Vegetable Oils, Emulsifier (E471)), Water, Ground Coffee Beans, Dried Glucose Syrup, Salt, Emulsifiers (E471, E435, E322, E477, E475), Flavouring.

Icing: Sugar, Water, Vegetable Oil, Fat Reduced Cocoa Powder (32%), Dried Glucose Syrup, Emulsifiers (E322, E471), Salt, Flavouring

Caramel Flavour Fudge: Sugar, Full Cream Sweetened Condensed Milk, Fondant (Sugar, Glucose, Water), Glucose, Vegetable Oil, Butter Oil, Natural Flavour.

Why “Natural” Doesn’t Always Mean Healthy

It’s easy to be fooled by labels. Words like “natural”, “no added preservatives”, and “made from real fruit” sound comforting, especially when applied to fruit juices. But don’t be misled — just because something starts life as a fruit doesn’t mean it ends up that way. By the time juice reaches the supermarket shelf, it’s often been filtered, concentrated, rehydrated, and loaded with added sugars, flavour enhancers, and synthetic vitamins.

Even juices that claim to be “100% fruit juice” are often from concentrate, which involves heating and reducing the juice down, destroying many of the natural nutrients in the process. What you’re left with is a sweetened liquid that behaves far more like a soft drink than a whole fruit.

Fruit vs Juice: The Blood Sugar Bomb

Eating a piece of fruit comes with natural fibre, which slows down the release of sugars into your bloodstream. But when you remove that fibre — as in juice — you’re left with a fast hit of fructose that spikes your blood sugar and insulin levels. Over time, these repeated spikes can contribute to insulin resistance, weight gain, and other metabolic issues.

For instance, to make a single glass of orange juice, you might need 3–4 oranges. Would you sit down and eat four oranges in one go? Probably not. But it’s easy to drink the juice in just a few gulps — and your pancreas gets no say in the matter.

The Problem with Portion Perception

One of the most misleading tricks in food labelling is providing nutrition information per 100ml or “per serve” — even though the packaging often contains far more than that. It’s the same tactic used for soft drinks. By breaking a 500ml bottle into 5 tiny theoretical servings, companies disguise just how much sugar is in the entire container.

It’s a labelling loophole, and it works. It makes the numbers look more reasonable — but in reality, the total sugar content is alarming. This is particularly dangerous for children and teens, who may be consuming these “healthy” juices daily, without realising the sugar load they’re taking in.

Is Fruit Juice Just a Gateway Soft Drink?

From a nutritional point of view, many commercial fruit juices behave much like a fizzy drink — delivering a quick hit of sugar, little fibre, and not much else. When they’re marketed as health foods, that makes them even more insidious. At least soft drinks are recognised as junk food. Juice, on the other hand, still enjoys a (largely undeserved) health halo.

While juice does contain small amounts of vitamins and antioxidants, the cons usually outweigh the pros. You’d get a better result — and far fewer sugars — by eating whole fruit and drinking water, or better yet, making your own smoothies with leafy greens and a handful of berries.

The Sugar Content of Common “Healthy” Drinks

Beverage	Typical Sugar Content (per 500ml)	Equivalent Teaspoons of Sugar
Cranberry Juice Drink (from concentrate)	53.5g	13.4 tsp
Orange Juice (100% juice, not from concentrate)	45g	11.3 tsp
Apple Juice	52g	13 tsp
Coca-Cola	53g	13.3 tsp
Sports Drink	35g	8.8 tsp

As you can see, many fruit juices contain just as much — if not more — sugar than their fizzy counterparts.

What Should You Drink Instead?

If you’re trying to cut back on sugar and processed food, drinks are an easy win. Here are some alternatives that keep things Paleo, natural, and hydrating:

• Infused Water: Add fresh herbs (like mint), citrus slices, or berries to a jug of filtered water for a refreshing twist without the sugar hit.
• Herbal Teas: Hot or iced, there are endless varieties from rooibos to peppermint that deliver flavour without artificial sweeteners.
• Kombucha: A fermented tea with beneficial bacteria. Just make sure to choose varieties with no added sugar after fermentation.
• Coconut Water: Naturally sweet and packed with electrolytes — but still best in moderation due to its natural sugar content.

Making Your Own Juice Alternatives

Sometimes, you just want something fruity. The good news is, there are DIY options that are far healthier than store-bought juice. Try blending a handful of berries with water, lemon juice, and a few ice cubes. You’ll get the taste of fruit, the benefits of fibre, and a much lower sugar content. If you have a juicer, focus on veggies like cucumber, celery, and kale, and add a tiny bit of apple or citrus for sweetness.

Another great trick is to make fruit and veggie ice cubes. Blend spinach, lemon and mint with water, then freeze in cubes. Drop a couple into a glass of sparkling water for a nutrient-boosted drink with no nasties.

The Takeaway

Just because a product is sold in the health food aisle or sports a “contains vitamin C” badge doesn’t mean it’s good for you. Fruit juice might come from something once wholesome, but the final product is often far from it. It’s time to treat commercial juices with the same scrutiny we give soft drinks.

If you’re aiming to eat a whole food, Paleo-inspired diet, ditching the juice is one of the easiest ways to reduce your sugar intake, improve your energy levels, and keep your blood sugar stable throughout the day. And honestly, once you retrain your palate, you'll be surprised how overpoweringly sweet most commercial juices taste anyway.

So next time you're craving a drink with flavour, think twice before reaching for that bottle labelled “100% fruit” — and remember, your best bet might just be a simple glass of filtered water with a wedge of lime.