Green coffee and its positive effects

Green coffee has long been more than just an insider tip among the health-conscious. More and more people are discovering the natural power of the unroasted beans for themselves, whether to help with weight loss, to boost the metabolism or as an alternative to classic coffee. The milder effect of caffeine, combined with a high concentration of chlorogenic acid, makes it an interesting superfood. In this article, we explain what green coffee is, how it works and how best to prepare it. We also discuss possible side effects and show who should not consume it.

What is green coffee and where does it come from?

Green coffee is made from the same beans as normal coffee, with one crucial difference: it is not roasted. By skipping the roasting process, some natural ingredients are preserved, such as the valuable chlorogenic acid. Green coffee contains up to 15 per cent of this - in comparison, roasted coffee only contains up to 3.5 per cent per 100 grams. The beans usually come from the same growing regions as classic coffee, such as South America, Africa or Asia. They are harvested, dried and processed directly without being exposed to high temperatures. Green coffee has a shelf life of several months. Like roasted coffee, it should be stored away from light and flavour.

Have you heard about the coffee trends of 2025?

Green coffee beans - how it works in the body

The main effect of green coffee on the body is due to the chlorogenic acid it contains. This is said to regulate blood sugar levels and stimulate fat metabolism. Green coffee also contains caffeine, but in lower concentrations than roasted coffee, which makes it easier to tolerate. The antioxidant effect protects cells from free radicals and supports general health. It is also believed that green coffee has an anti-inflammatory effect and can strengthen the immune system.

The green coffee bean - composition and ingredients

In addition to the aforementioned chlorogenic acid and caffeine, the green coffee bean consists largely of carbohydrates, which make up at least 50 per cent of its dry weight. It also contains around 10 to 20 per cent proteins and lipids, which play an important role in the nutritional value and the chemical reactions during roasting.

Another component is cellulose, which contributes to the structural strength of the bean. The green bean also contains various alkaloids, including the bioactive trigonelline, which is partially converted into niacin (vitamin B3) during roasting.

Vitamins and minerals are also present in significant quantities. In particular vitamins of the B group and vitamin C. The minerals it contains include iron, potassium and magnesium, which are important for numerous metabolic processes in the body.

In its natural, unroasted form, the green coffee bean therefore has a complex composition that makes it interesting not only as a raw material for coffee production, but also for other applications, such as in the area of functional foods or food supplements.

The positive effects of green coffee

Green coffee beans have positive properties that make them a popular natural product. It is particularly well known for its supportive effect on weight management and its positive effect on the metabolism. People also report increased energy and better concentration, without the nervous restlessness that roasted coffee can sometimes cause. Green coffee also has an effect on the skin. In combination with other stimulating plant ingredients, it is used for skin care that promotes blood circulation.

Green coffee for weight loss: Testimonials

Studies and testimonials suggest that green coffee can help with weight loss. The chlorogenic acid it contains inhibits the absorption of sugar in the intestine and at the same time stimulates fat burning. Green coffee can also have a positive effect on the feeling of fullness. However, it is important to note that green coffee is not a substitute for a healthy diet and regular exercise, it can only be a useful supplement.

Green coffee as extract, granules or brewed?

Green coffee is available in various forms. As an extract, green coffee is usually taken in capsule or drop form and scores highly as a dietary supplement due to its high concentration of active ingredients. Powder is ideal for smoothies or for brewing as a tea. Whole beans are suitable for classic preparation using a coffee grinder and filter. Green coffee in the form of brewed beans remains particularly natural.

Does the form in which it is served have an influence on its positive properties?

Yes, the dosage form can influence the concentration of the active ingredients, especially chlorogenic acid. Powders, extracts and granules can sometimes contain significantly higher levels of chlorogenic acid than whole or unprocessed beans. However, the actual concentration varies depending on the product and manufacturing process, so it makes sense to compare the respective information on the label.

Where can you buy green coffee?

You can buy green coffee in pharmacies, online mail order companies or in specialised food shops. If you prefer freshly roasted coffee beans, we recommend a visit to our coffee bike, the mobile café bike.

How to prepare green coffee

The preparation of green coffee is slightly different from normal coffee preparation. As the beans are harder, it is advisable to soak or pulverise them overnight beforehand. They are then steeped in hot water for around 10-15 minutes, as with herbal tea. The result is a slightly greenish-yellow infusion with a tart, grassy flavour. You can refine the preparation with spices or natural additives. It is best drunk in the morning or before exercise to benefit from its energising effect.

Turmeric and honey in green coffee

Turmeric and honey are popular additives to enhance the flavour and health benefits of green coffee. Turmeric has an anti-inflammatory and antioxidant effect and supports liver function, making it an ideal complement to the effects of green coffee. Honey not only provides natural sweetness, but also contains antibacterial and healing ingredients. The combination results in an aromatic hot drink with a beneficial effect. However, pay attention to the dosage: a pinch of turmeric and a teaspoon of honey are enough.

Side effects of green coffee

Although green coffee offers some benefits, it can - like any natural product - also have side effects. Particularly sensitive people can react to the caffeine it contains with restlessness, nervousness or sleep disorders. Stomach irritation is also possible with excessive consumption. It is therefore important to start with small quantities and to check your own tolerance. The recommendation for the consumption of green coffee is therefore approx. 200-300g per day. In case of uncertainty or pre-existing conditions, medical advice should be sought before regular consumption. The quality and origin of the product also play a major role in tolerance.

At Coffee-Bike, we ensure high quality for you with our certified organic espresso and coffee beans. See for yourself: Rent a Coffee-Bike.

How does chlorogenic acid affect the body?

Chlorogenic acid is the key active ingredient in green coffee and affects various processes in the body. It inhibits certain enzymes that are responsible for glucose uptake and can therefore stabilise blood sugar levels. At the same time, it can promote fat burning and protects the cells from oxidative stress. Chlorogen also has anti-inflammatory and blood pressure-lowering properties, which makes it interesting for people with cardiovascular problems. However, as it is a natural acid, it can also cause irritation if you have a sensitive stomach. Does this mean that green coffee is harmful to health?

Who should not drink green coffee?

Not everyone benefits equally from green coffee. Pregnant women, nursing mothers, children and people with cardiac arrhythmia or high blood pressure should refrain from drinking it or seek medical advice. People with sensitive stomachs or a known caffeine intolerance should also be careful. As with any dietary supplement, quality, dosage and personal tolerance are crucial.

Alternatives to green coffee

It's not just green coffee that has a positive effect on metabolism and fat burning. If you don't like the grassy and slightly bitter flavour of green coffee, you can also try alternatives:

Green tea - antioxidant fat burner

Green tea is rich in antioxidants, which can stimulate fat burning and boost the metabolism. It is considered one of the most effective natural options for supporting weight loss.

Matcha - green energy booster

Matcha is a special form of green tea in powder form that contains a high concentration of antioxidants and nutrients. Matcha also supports fat burning and can boost energy levels.

Try our delicious matcha on the coffee bike and hire our coffee bar for events!

Conclusion on green coffee

Green coffee is one of the potentially health-promoting foods and contains valuable ingredients such as chlorogenic acid, which can have positive effects on the body. Initial research results and field reports are promising, but there are still no comprehensive scientific studies that clearly prove the effects of green coffee. If you want to try it out, you should focus on quality and consciously pay attention to your own tolerance.

At Coffee-Bike, we focus on high-quality, freshly roasted coffee that is prepared with passion and genuine barista craftsmanship. Want to find out more about our mobile coffee bar? This is our coffee bike.