What to Drink for Weight Loss? An Honest Review of Drinks That Actually Work

Type „what to drink for weight loss” into a search engine, and you’ll get twenty contradictory answers in five minutes: celery juice, water with apple cider vinegar, coffee with cinnamon, litres of green tea on an empty stomach. The truth is less spectacular. No drink burns fat on its own – that’s what a calorie deficit does. But some drinks genuinely make that work easier, while others quietly sabotage it, even though they look innocent in a glass.

This text doesn’t promise miracles. We examine what’s actually known about water, green tea, black coffee and yerba mate in the context of weight reduction – including where these drinks fall short.

Why the Drink You Choose Actually Matters for Weight Loss

Liquids are easily overlooked when counting calories, because „it’s just a drink, after all”. Yet a glass of orange juice is 110–120 kcal without a gram of fibre that would give a feeling of fullness. Drunk mindlessly between meals, it can add as much to your weekly balance as an extra meal. On the other hand, a well-chosen drink can work the other way: it can give a feeling of fullness, add energy for your workout instead of discouraging you from it, or simply replace something worse in your routine.

So what matters isn’t a single „miracle” ingredient, but what actually ends up in your cup throughout the day.

Water – the least flashy, most important choice

This sounds like a truism, but the mechanism behind it is concrete: the hypothalamus, the part of the brain responsible for hunger and thirst, can confuse these two signals. Mild dehydration is sometimes felt as a craving for food, especially something sweet. A glass of water drunk before you reach for a snack is the cheapest test you can run – sometimes the hunger disappears within a few minutes, because it was never real hunger.

On top of that, water drunk before a meal physically takes up space in the stomach, so it’s easier to eat less without feeling like you’re starving yourself. Zero calories, zero side effects, zero cost. The only downside: no one will post about it on Instagram, so it regularly gets overshadowed by more „marketable” drinks.

Green tea – catechins in a moderate dose

Green tea contains catechins, including EGCG, which in metabolism studies most often appear as compounds supporting fat oxidation combined with a moderate dose of caffeine. The effect isn’t spectacular and won’t work if the rest of your diet stays unchanged, but as a daily habit instead of, say, sweetened iced tea – it makes sense.

To be fair, brewing quality makes a difference. Water that’s too hot (above 80–85°C) washes more bitterness than beneficial compounds out of the leaves, and steeping the same tea several times in a row gives an increasingly weaker infusion over time. If you drink it mainly for the health effect rather than the taste, it’s worth keeping in mind.

Black coffee – thermogenesis that’s easy to ruin with add-ins

Black coffee without additives has practically zero calories, and the caffeine in it briefly raises the metabolic rate and mobilises fatty acids for burning – one of the better-documented effects of caffeine in general. The problem starts with vanilla syrup, whipped cream and double sugar, because then a „weight-loss” drink turns into a dessert in a cup, often over 300 kcal.

Another issue is tolerance. With regular drinking, the body gets used to caffeine and the thermogenic effect weakens, while for those with sensitivity, coffee on an empty stomach can simply be unpleasant – heart palpitations, irritability, a drop in energy after a few hours instead of a boost.

Yerba Mate – caffeine plus something more

Yerba Mate differs from coffee and regular green tea in that it combines a similar stimulating power with a broader range of natural compounds – polyphenols, chlorogenic acid and xanthines, including mateine. Chlorogenic acid shows properties in studies that support insulin sensitivity, which matters for controlling appetite between meals. Dr Justyna Jessa, a clinical dietitian, said directly when talking about Yerba Mate: „Yerba Mate affects the level of leptin, the satiety hormone, which helps control appetite”.

In practice, this means less snacking between meals, not magically melting away fat tissue. If you want to see the full mechanism step by step, including scientific evidence and practical dosing, we have a separate, longer article: Yerba Mate for Weight Loss – How It Supports Your Metabolism. And if you’re torn between yerba and coffee as your morning fuel, we compared them fairly in a separate article.

In terms of taste, yerba mate falls somewhere between tea and coffee – herbal bitterness, sometimes slightly smoky, depending on the dried leaves. It’s brewed in a matero with a bombilla, or more simply, in a mug with an infuser, using water at 70–80°C, never boiling.

What’s better to avoid if you care about your weight

Fruit juices, even the „100% natural” ones, are concentrated sugar without the fibre that would slow its absorption in whole fruit. „Zero” carbonated drinks don’t add calories, but for some people they reinforce the habit of reaching for something sweet, which makes it harder to unlearn the taste for sugar. Alcohol is a separate matter – besides the calories from the drink itself (a drink is usually 100–250 kcal), it lowers self-control around food, so an evening with wine often ends with an extra snack you wouldn’t normally have.

A separate category is trendy „detoxes” and cleansing juices sold as weight-loss accelerators. Your liver and kidneys handle detoxifying the body just fine without help from bottled celery juice – that’s marketing, not physiology, and no company (us included) should be selling you that promise.

How to arrange this throughout the day

In the morning, on an empty stomach or right after breakfast: yerba mate or coffee, no sugar. This is when caffeine best supports concentration and keeps your appetite in check for a few hours. During the day: water as the base, simply within reach on your desk, because out of sight, out of mind – if you can’t see the glass, it’s easy to forget to drink. In the afternoon: green tea or a second round of yerba, instead of coffee, so as not to boost caffeine too late and disturb your sleep. In the evening: water or a caffeine-free herbal infusion.

This isn’t a rigid protocol, just a starting point. If evening yerba mate doesn’t interfere with your falling asleep, drink it then – bodies differ in caffeine sensitivity, and it’s worth testing this on yourself instead of blindly copying someone else’s schedule.

Yerba Mate Slim Fit – when you want to go a step further

Plain yerba mate on its own already supports metabolism thanks to natural xanthines and chlorogenic acid. Yerbador Slim Fit goes a step further – to the same yerba mate base, it adds fennel and dandelion root, which help remove excess water from the body, plus rowan berry and grapefruit extract, which support cell protection against oxidative stress. It’s still an infusion to brew, not a pill – you drink it the same way as regular yerba mate, just knowing the composition is tailored to a specific goal.

Check out the product: Yerba Mate Slim Fit 300 g

If you’re starting from scratch and don’t have a matero or bombilla yet, it’s simpler to get a starter set – everything in one box, no need to look for accessories separately.

Check out the product: Slim Fit starter set – bombilla + matero + yerba

And since this entire text is really about drinking the right things throughout the day, not just in the morning at your desk – a thermos actually makes practical sense here. It keeps the infusion at the right temperature, so your yerba mate travels with you to work or on a walk instead of staying behind in the kitchen.

Check out the product: Pro Max Flask + Slim Fit

Frequently asked questions

Is drinking water alone enough to lose weight?

It won’t replace a calorie deficit, but it helps maintain one – mainly because some of what feels like „hunger” is actually thirst, and drinking before a meal naturally reduces portion sizes.

How many cups of coffee or yerba mate a day is safe?

Generally, up to about 400 mg of caffeine a day is considered safe for a healthy adult, which is roughly 3–4 cups of strong coffee or the equivalent in yerba mate. People with hypertension, who are pregnant, or sensitive to caffeine should stick to lower doses and ideally consult a doctor.

Is green tea and yerba mate together a good idea?

You can combine both throughout the day, as long as you keep track of your total caffeine intake. Drinking one right after the other without a break doesn’t make much sense – it’s better to spread them out over time, e.g. yerba mate in the morning, green tea in the afternoon.

Does Slim Fit work faster than regular yerba mate?

It’s not about speed, but about an additional direction of action – supporting the removal of excess water and protecting cells from oxidative stress, alongside everything regular yerba mate already offers. The pace of results is still determined mainly by the overall calorie balance of your diet.

Are „light” and zero-calorie drinks a good choice?

Calorie-wise, yes, they don’t add anything to the balance. In practice, they can be problematic if they keep you attached to intensely sweet flavors and make it harder to switch to water or unsweetened infusions. Once in a while they won’t hurt, but as an everyday staple – they might not help either.

If you’re looking for even more specifics about yerba mate in the context of weight, check out our ranking of yerbas for weight loss, where we compare Slim Fit with other blends from our range.