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Meal

Subway

Footlong Tuna Mayo

Per serve (440 g), subs

A Subway Footlong Tuna Mayo has 754 Cal (3,160 kJ), 44 g protein, 76 g carbohydrate (8.8 g sugars), 29 g fat (9 g saturated), 1,480 mg sodium and 7.2 g fibre per serve (440 g), according to Subway's published Australian nutrition information.

754 Cal3,160 kJ

36% of an average adult’s daily energy (8,700 kJ)

Protein

44 g

24% of energy

Carbs

76 g

42% of energy

Fat

29 g

34% of energy

Saturated fat
9 g
Sugars
8.8 g
Sodium
1,480 mg
Fibre
7.2 g

Subway gives these figures as approximate.

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Footlong Tuna Mayo nutrition questions

How many calories are in a Subway Footlong Tuna Mayo?

A Subway Footlong Tuna Mayo has 754 Cal (3,160 kJ) per serve, which is 36% of the 8,700 kJ average adult daily energy intake.

How much protein is in a Subway Footlong Tuna Mayo?

A Subway Footlong Tuna Mayo has 44 g of protein per serve.

How many carbs are in a Subway Footlong Tuna Mayo?

A Subway Footlong Tuna Mayo has 76 g of carbohydrate per serve, including 8.8 g of sugars.

How much fat is in a Subway Footlong Tuna Mayo?

A Subway Footlong Tuna Mayo has 29 g of fat per serve, of which 9 g is saturated.

How much sodium (salt) is in a Subway Footlong Tuna Mayo?

A Subway Footlong Tuna Mayo has 1,480 mg of sodium per serve.

Is the Subway Footlong Tuna Mayo high in protein?

It has 5.8 g of protein per 100 Cal, compared with an average of 5.1 g per 100 Cal across Subway's subs.

Source: Subway nutrition information as at 1 May 2026. Spot something wrong? Suggest an edit