Summary
Dr. Berg highlights Sir Kensington’s Mayonnaise as his keto food of the week, praising it for avoiding soy oil — a common ingredient in most commercial mayonnaises. He reviews the ingredients across their Classic, Chipotle, and Mustard varieties, noting they are non-GMO and contain only trace amounts of sugar. His one minor criticism is the inclusion of organic sugar cane, though the actual sugar content rounds down to zero grams per serving.
Key Takeaways
- Most commercial mayonnaises contain soy oil, which is a GMO ingredient — Sir Kensington’s avoids this entirely
- The Classic mayo uses sunflower oil as its base instead of soy oil
- Sugar content is listed as zero grams because the amount is less than one gram — a legal labeling threshold
- The product is non-GMO certified, which Dr. Berg considers an important quality marker
- Sir Kensington’s offers three varieties: Classic, Chipotle, and Mustard
- The mustard variety contains turmeric, paprika, cloves, cinnamon, and allspice — flavorful spices with no added carbohydrates
- The product is gluten-free by nature, as it contains no grain-based ingredients
- Dr. Berg has no financial affiliation with the brand and plans to contact the company to request removal of the sugar cane ingredient
Details
Why Soy Oil Is a Concern
Nearly every mainstream mayonnaise brand uses soy oil, which Dr. Berg flags as a GMO ingredient. For those following a ketogenic diet, ingredient quality matters beyond just macronutrient ratios, making oil source an important consideration when selecting condiments.
Ingredient Breakdown
Classic Mayonnaise:
- Sunflower oil, egg yolks, water, organic lemon juice, distilled vinegar, salt, fair trade organic sugar cane, mustard flour, black pepper, citric acid
Mustard Variety:
- Water, distilled vinegar, mustard seeds, salt, fair trade organic sugar cane, turmeric, paprika, cloves, cinnamon, allspice
The Sugar Labeling Issue
Both products list 0g carbohydrates and 0g sugar on the nutrition label. Dr. Berg explains this is because the actual sugar content falls below one gram per serving — a threshold that allows brands to round down to zero under FDA labeling rules. While he considers this amount negligible for ketosis, he intends to contact Sir Kensington’s to advocate for complete removal of sugar cane from the formula.
Practical Use
Dr. Berg uses these products directly on keto-friendly burgers, making them a practical, ready-to-use condiment for everyday ketogenic diet meals without needing to make homemade mayonnaise to avoid problematic oils.