Calories in
mayonnaise, reduced fat, with olive oil
361 kcal per 100 g Mayonnaise, reduced fat, with olive oil contains 361 calories per 100 grams, or about 54 calories per tbsp. Per 100 g it provides 0.4 g protein, 0.0 g carbohydrate and 40.0 g fat.
By calories that splits 0% carbohydrate, 0% protein, 100% fat — dissected below.
SOURCE·USDA SR Legacy·FDC 171443·REVIEWED JUL 2026
The 4·4·9 shorthand adds to 361 kcal and USDA publishes 361 kcal. The arithmetic closes, so the axis above is simply that figure divided by the shares.
Source—USDA FoodData Central, SR Legacy—FDC 171443—retrieved 2026-07
How this is worked out
- USDA measures every nutrient per 100 g of edible portion. That row is published here unchanged — nothing is rounded up, smoothed or "adjusted".
- The energy figure is USDA's own, derived with food-specific factors. This site never computes the calorie count it publishes.
- The Atwater shorthand 4 · 4 · 9 is applied to the protein, carbohydrate and fat grams only to split that energy into shares — and where the shorthand disagrees with the published figure, the gap is printed rather than hidden.
- A serving is a straight proportional conversion of the per-100 g row, using USDA's own household measures for the grams.
- The walking figure uses MET 4.0 at 70 kg, the same equation the sister site publishes.
per serving = per 100 g × serving grams ÷ 100 energy shares = 4·P + 4·C + 9·F (P, C, F in grams) walk minutes = kcal ÷ (4.0 × 3.5 × 70 ÷ 200)
Calories in a typical serving
Per-100 g figures are useful for comparison but nobody eats 100 g of anything on purpose. These are the USDA's own household measures.
| Serving | Grams | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|---|
| 1 tbsp | 15.0 g | 54 | 0.1 g | 0.0 g | 6.0 g |
| 1 cup | 232.0 g | 838 | 0.9 g | 0.0 g | 92.8 g |
SOURCE·USDA SR Legacy·REVIEWED JUL 2026
Full nutrition, per 100 g and per tbsp
| Nutrient | Per 100 g | Per tbsp |
|---|---|---|
| Energy | 361 kcal | 54 kcal |
| Protein | 0.4 g | 0.1 g |
| Total fat | 40.0 g | 6.0 g |
| Saturated fat | 5.4 g | 0.8 g |
| Carbohydrate | 0.0 g | 0.0 g |
| Fibre | 0.0 g | 0.0 g |
| Sugars | 0.0 g | 0.0 g |
| Sodium | 800.0 mg | 120.0 mg |
| Potassium | 31.0 mg | 4.7 mg |
| Calcium | 0.0 mg | 0.0 mg |
| Iron | 0.0 mg | 0.0 mg |
| Vitamin C | 0.0 mg | 0.0 mg |
| Vitamin A | 8.0 µg | 1.2 µg |
| Cholesterol | 33.0 mg | 5.0 mg |
| Water | 57.6 g | 8.6 g |
A dash means the nutrient was not measured for this item, which is not the same as zero.
SOURCE·USDA SR Legacy·FDC 171443·REVIEWED JUL 2026
How mayonnaise, reduced fat, with olive oil compares
Among the 55 fats and oils items on this site, mayonnaise, reduced fat, with olive oil ranks 47 of 55 by calorie density, against a category average of 762 kcal per 100 g — so it is about 53% less calorie-dense than typical for its group.
It carries 0.1 g of protein per 100 calories, so it is not a meaningful protein source.
To burn off one tbsp (54 kcal), a 70 kg adult would walk for roughly 11 minutes — see the walking calculation on our sister site, or pick a different activity. Treat that as a sense of scale rather than a rule: eating and moving are not a simple ledger.
SOURCE·USDA SR Legacy·REVIEWED JUL 2026
A reference table describes the average mayonnaise, reduced fat, with olive oil. Yours was grown somewhere, picked at some ripeness, and cooked by you.
Questions this entry settles
How many calories are in mayonnaise, reduced fat, with olive oil?
Mayonnaise, reduced fat, with olive oil contains 361 calories per 100 g, which works out to about 54 calories per tbsp. It also provides 0.4 g of protein, 0.0 g of carbohydrate and 40.0 g of fat per 100 g.
What is the macro breakdown of mayonnaise, reduced fat, with olive oil?
By calories, mayonnaise, reduced fat, with olive oil is roughly 0% carbohydrate, 0% protein and 100% fat. That makes it a predominantly fat-based food.
How long does it take to burn off a tbsp?
About 11 minutes of ordinary walking for a 70 kg adult (MET 4.0). That is a rough guide for scale, not a prescription — appetite and activity interact in ways a simple subtraction does not capture.
Is this figure exact for the mayonnaise, reduced fat, with olive oil I bought?
No. These are USDA reference values, averaged across samples. Real foods vary with variety, ripeness, growing conditions, cut, brand and how they were cooked — 10–20% either way is normal. Use them for planning, not precision.
Neighbouring entries
The 6 foods that sit closest to mayonnaise, reduced fat, with olive oil on the calorie-density shelf, all within fats and oils.
Source: USDA FoodData Central, SR Legacy — public domain, reviewed JUL 2026. Full USDA description: "Mayonnaise, reduced fat, with olive oil". General information only — not medical or nutrition advice. Values are averages for a food type and vary by brand, ripeness and preparation.
