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Mayonnaise Nutrition Facts per 100g

Mayonnaise contains 691 kcal per 100g, with 1.0g of protein, 1.6g of carbohydrates, and 75.0g of fat. It is energy-dense. Its low carb content makes it a good fit for ketogenic diets. It is suitable for vegetarians.

  • Contains: Eggs
  • Dietary: Keto, Paleo, Halal, Kosher, Vegetarian
  • Key Micronutrients (per 100g): Iron 0.18mg, Calcium 6.0mg, Vitamin C 0.0mg
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Nutritional Overview

Mayonnaise is a flavouring or condiment used to enhance the taste of dishes. Per 100g serving, it provides 691 kcal of energy, 1.0g of protein, 1.6g of carbohydrates, and 75.0g of fat.

Under UK FSA traffic-light labelling, this food is classified as high in fat with 75.0g per 100g (5.8g of which is saturated). The NHS recommends that fat makes up no more than 35% of daily energy intake. Portion awareness is advisable when including it regularly.

With only 1.0g of sugar per 100g, it meets the UK/EU "low sugar" nutrition-claim threshold. This makes it a suitable choice for those reducing their sugar intake as part of a balanced diet.

Mayonnaise is suitable for ketogenic (with only 1.6g of carbs per 100g), vegetarian, halal and kosher diets, making it a versatile choice for households with mixed dietary requirements.

This is an energy-dense food at 691 kcal per 100g, largely due to its fat content (75.0g per 100g). Fat provides 9 calories per gram, more than double that of protein or carbohydrates. While it can be part of a balanced diet, portion control is recommended to avoid exceeding daily calorie needs. Mayonnaise can add 691 kcal to your day without you noticing, until our nutritional value calculator uk logs it and shows you the real total.

Frequently Asked Questions

How many calories are in Mayonnaise?

Mayonnaise contains 691 kcal per 100g, which is approximately 35% of the recommended daily intake of 2,000 kcal for an average adult. This is considered energy-dense.

Is Mayonnaise a good source of protein?

Mayonnaise contains 1.0g of protein per 100g, which is relatively low. To increase your protein intake, consider pairing it with Supervalu Cooked Irish Ham, Harðfiskur (dried fish jerky), Soy Protein Isolate, or other protein-rich foods.

Is Mayonnaise high in fat?

Yes, according to FSA traffic-light guidelines, Mayonnaise is classified as high in fat with 75.0g per 100g (the threshold is 17.5g). Of this, 5.8g is saturated fat.

Is Mayonnaise low in sugar?

Yes, Mayonnaise has only 1.0g of sugar per 100g, meeting the UK/EU "low sugar" nutrition-claim threshold.

Is Mayonnaise keto-friendly?

Yes, with only 1.6g of carbohydrates per 100g, Mayonnaise fits within a standard ketogenic diet that typically limits carbs to 20-50g per day.

Is Mayonnaise suitable for vegetarians?

Yes, Mayonnaise is suitable for a vegetarian diet, though it is not vegan as it may contain dairy, eggs, or other animal by-products.

Does Mayonnaise contain any allergens?

Yes, Mayonnaise contains the following allergens: eggs. Under UK food labelling regulations, these must be clearly declared. Always check the product label if you have food allergies or intolerances.

Why is Mayonnaise so high in calories?

At 691 kcal per 100g, Mayonnaise is energy-dense, primarily due to its high fat content (75.0g per 100g). Fat provides 9 calories per gram, more than double that of protein or carbohydrates.

Sources & References

  1. British Nutrition Foundation — UK nutrition science and education
  2. McCance & Widdowson's Composition of Foods — UK food composition tables
  3. USDA FoodData Central — US Department of Agriculture food composition database
  4. NHS Eat Well — UK National Health Service dietary guidance
  5. Scientific Advisory Committee on Nutrition (SACN) — UK government dietary recommendations and nutrient reference values

Nutritional values are per 100g unless otherwise stated and are provided for general information only. Not a substitute for professional dietary or medical advice. If you have a health condition, allergy, or are pregnant, consult a qualified healthcare professional. Values may vary depending on brand, preparation method, and serving size.

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