How many calories in half an avocado?

Half a medium avocado (~75g flesh) contains around 120 calories, mostly from healthy monounsaturated fats. Avocado is NOVA 1 and has virtually no glucose impact.

Are avocados high in calories?

Yes — at 198 kcal per 100g, avocado is calorie-dense compared to most fruit. But the calories are from healthy fats that keep you full, not from sugar.

How many calories in a quarter of an avocado?

A quarter of a medium avocado contains around 60 calories with 5.5g of fat and almost zero carbs.

Glucose: Very LowNOVA 1

How Many Calories for Avocado?

Q: What is the glycemic index of avocado?

Avocado has a glycemic index of 15, which is classified as Low GI. Avocados have a very low GI of approximately 15, with just 1.9 g of carbohydrate and 0.5 g of sugar per 100 g. Their high fat and fibre content means they have virtually no impact on blood glucose levels. Avocados are one of the safest foods for people monitoring blood sugar.

80 g (half a medium avocado) of avocado contains around 158 calories (198 kcal per 100g). Avocado is classified as NOVA 1 (unprocessed).

Nutrition per 100g

Nutrient	Per 100g	Per serving
Energy	198 kcal / 813 kJ	158 kcal
Protein	1.9g	1.5g
Carbohydrates	1.9g	1.5g
of which sugars	0.5g	—
Fat	19.5g	15.6g
of which saturated	4.1g	—
Fibre	3.4g	—
Salt	0.01g	—

Serving size: 80 g (half a medium avocado) · Source: Tesco product page, October 2025

Glucose impact

Glycemic Index

Very Low

Glucose risk

Avocados have a very low GI of approximately 15, with just 1.9 g of carbohydrate and 0.5 g of sugar per 100 g. Their high fat and fibre content means they have virtually no impact on blood glucose levels. Avocados are one of the safest foods for people monitoring blood sugar.

Processing level

NOVA 1 (unprocessed)

Whole avocados are an unprocessed fruit with a single ingredient. Even pre-ripened avocados remain NOVA 1. Prepared products like smashed avocado with added salt and lemon may be NOVA 2.

Avocado at Tesco

Source: Tesco product page, October 2025

Tesco Ripe & Ready Avocado

£0.75*NOVA 1 (unprocessed)

Tesco Ready To Eat Large Avocados Each

£0.89*NOVA 1 (unprocessed)

Tesco Perfectly Ripe Avocados Twin Pack

£1.50*NOVA 1 (unprocessed)

Tesco Ripen At Home Avocados 3Pack

£1.90*NOVA 1 (unprocessed)

Tesco Simply Smashed Avocado - 100g

£1.15*NOVA 2 (processed culinary ingredient)

*Prices were correct at the time of collection and may have since changed. Check Tesco.com for current pricing.

What to watch for when shopping

Whole avocados are an excellent choice with no hidden ingredients. Be aware that prepared avocado products (guacamole, smashed avocado pots) can contain added salt, preservatives, and flavourings that increase their NOVA score. The Tesco Simply Smashed Avocado contains concentrated lime juice and 0.55 g salt per 100 g.

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