Avocado: benefits, how much to eat and how to choose one

What properties does avocado have?

The edible portion provides mainly monounsaturated fat, as well as fibre, potassium and vitamin E. The Spanish food composition record lists these values per 100 g of flesh [1]. For a 50 g serving, simply divide each value by two.

Nutrient	Per 100 g of flesh	Per 50 g of flesh
Energy	136 kcal	68 kcal
Total fat	12 g	6 g
Monounsaturated fat	9.01 g	4.51 g
Fibre	6.3 g	3.15 g
Potassium	400 mg	200 mg
Vitamin E	3.2 mg	1.6 mg

Vitamin E is expressed as alpha-tocopherol. One serving provides a small part of what you need each day, and the rest comes from oils, nuts and seeds.

Does avocado make you gain weight, and what is a reasonable serving?

A 50 g portion of flesh is a practical guide that each person can adjust. In a medium avocado, it is about one third. If you use it on toast, consider how much you spread; if it is part of a full salad, take the whole meal into account.

Avocado provides more energy than many fruits because it contains fat [1]. That does not make a meal a problem. Nor do you need to add a whole avocado for the meal to be enough. Adjust the amount to your appetite, activity and the other fats in the meal.

A trial that added one avocado a day for six months found no reduction in visceral fat, its primary outcome [2]. It does not support the claim that avocado helps you lose weight. Nor does it show that a usual serving causes weight gain on its own.

What do we know about cholesterol and the heart?

When it replaces some fat that is high in saturated fat, avocado changes the fat profile of the meal. A review of trials found modest reductions in total cholesterol and LDL, especially with amounts considerably larger than a usual serving [3].

Diet trials are often small or brief. The larger trial mentioned above, funded by the avocado industry, found only a small reduction in LDL cholesterol [2]. The funding means the results should be read cautiously; it does not automatically invalidate them.

An observational follow-up found fewer cardiovascular events among people who ate more avocado [4]. This association does not prove that the fruit prevented the events. Other habits may also have influenced the data, although the researchers tried to account for them.

If you are concerned about your blood test results, your overall diet is what matters. You can start with our guide to high cholesterol. The healthy fats guide explains how to combine different sources, and our guide to walnuts can help you add variety.

How do you choose an avocado and ripen it at home?

If you want to eat it today, look for one that gives slightly when pressed gently and has no sunken soft spots. If you want it for a few days’ time, choose a firm one. Colour varies by variety and is not always a reliable sign.

Leave it to ripen at room temperature. A paper bag may help; check it each day. Once ripe, store it whole in the fridge. Cut fruit keeps for less time: refrigerate it and use it soon [5].

If you cut one open and find small dark spots, remove the affected areas. If it has mould, smells bad or the flesh is badly deteriorated, discard it. That way, you avoid forcing yourself to eat something you no longer fancy just to prevent waste.

How can you use it throughout the day?

Its creamy texture means you can add it without cooking. In the morning, it can go with wholemeal toast and egg. At lunchtime, a few cubes add contrast to a bowl of pulses and vegetables. At dinner, a few slices can complete a salad with fish or tofu.

Mashed avocado with lemon works as a spread. If you use it to replace butter, consider the amount of both ingredients before comparing calories. The flavour changes, and so does the fat composition [1]. You do not need to call a dish healthy just because it contains avocado.

If you feel like varying your meals, you can also look at our avocado sandwich recipe. For questions about migraine and food, use the specific guide; this article does not identify personal triggers.

Who should be careful with avocado?

If you have a latex allergy or have reacted to fruits such as banana or kiwi, speak to an allergy specialist if you notice symptoms after eating avocado. Some proteins can cause cross-reactivity, known as latex-fruit syndrome [6].

This association does not mean that everyone with a latex allergy needs to avoid avocado. If you have had symptoms, do not test it on your own. Our guide to food allergies and intolerances explains the difference between an allergic reaction and an intolerance.

If you take a vitamin K antagonist, keep your usual intake of foods containing vitamin K consistent. Avocado is one of them. Before making major changes to your diet, ask your pharmacist or doctor whether avocado interacts with your medication [7]. Do not change your medication on your own. You do not have to exclude avocado automatically.

If you have kidney disease and have been advised to monitor potassium, ask your care team what amount of avocado fits your plan, based on your test results and treatment.

What we see in consultations

The question we hear most often is whether you can eat it every day. Yes, if the amount fits into the meal and does not get added to other fats out of habit: avocado, oil and nuts in the same meal.

We also see people cut it out as soon as they start watching their weight, and others add it to everything because they think it is healthy. Neither extreme is necessary. What helps is deciding which meal it adds the most to.

What is the environmental impact of growing it?

Avocado growing and transport can put pressure on water resources, depending on the production area; buying the amount you will use helps reduce waste, without feeling guilty about choosing it [8].