Digestive Biscuit: Calories, Nutrition and Health Benefits

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A plain digestive biscuit (about 15 g) has 71 calories, 3.1 g fat, 9.3 g carbs, 2.2 g sugar, 0.5 g fiber, 1 g protein and about 78 mg sodium. Most people eat two or three with tea, which puts a sitting at roughly 140 to 210 calories. The numbers match McVitie's Original Digestives; other brands and chocolate-coated versions run higher.

Quick Nutrition Facts

Per 1 biscuit (15 g)

Nutrient	Amount
Calories	71 kcal
Protein	1g
Carbohydrates	9.3g
Fiber	0.5g
Sugars	2.2g
Fat	3.1g
Sodium	78 mg

Macronutrient Breakdown

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NUTRITIONIST'S INSIGHT

One digestive is small, and 71 calories is easy to fit into almost any day. The catch is the sitting: two biscuits is 142 kcal and 6 g fat, and a tea-time packet habit of four reaches 284 kcal. About 39% of the calories come from fat (3.1 g x 9 kcal of 71 kcal), and roughly 1.5 g per biscuit is saturated, so four biscuits use about 6 g of the 20 g (women) or 30 g (men) saturated fat the NHS gives as a daily maximum. The name suggests a fiber food, but at 0.5 g per biscuit it is a modest source. Treat it as a biscuit with some wholemeal flour in it, and count the dunk the same as any other snack.

Myth Busters

MYTH #1: Digestive biscuits are a healthy, high-fiber snack

TRUTH: The wheat flour is partly wholemeal, but one biscuit gives only about 0.5 g of fiber (3.7 g per 100 g) alongside 3.1 g of fat and 2.2 g of sugar. The NHS places biscuits in the group of foods high in fat, salt or sugar that it advises eating less often and in small amounts. McVitie's Digestives The Original Biscuits, typical values per 100 g and per biscuit (Ocado); The Eatwell Guide (NHS)

MYTH #2: Digestives have less sugar than other biscuits so they are diet food

TRUTH: At about 15 g of sugar per 100 g they are lower than many chocolate or cream biscuits, but the energy is still about 483 kcal per 100 g, mostly from fat and refined flour. Portion count matters more than the brand label. McVitie's Digestives The Original Biscuits, typical values per 100 g and per biscuit (Ocado); McVitie's Digestives The Original Biscuits Twin Pack 2x360g label values (McGrocer)

MYTH #3: One biscuit is a free snack because it is so small

TRUTH: One is 71 kcal, which is small, but few people stop there. Three biscuits is 213 kcal and 9 g fat. McVitie's Digestive Biscuit, 1 biscuit (15 g) (FatSecret); McVitie's Digestives The Original Biscuits, typical values per 100 g and per biscuit (Ocado)

MYTH #4: They are low in saturated fat

TRUTH: Roughly half the fat is saturated, about 1.5 g per biscuit. Four biscuits would use about 6 g of the NHS daily maximum of 20 g for women or 30 g for men. McVitie's Digestives The Original Biscuits, typical values per 100 g and per biscuit (Ocado); How to eat less saturated fat (NHS)

MYTH #5: Chocolate and plain digestives are about the same

TRUTH: The chocolate-coated version adds sugar and fat, and a single biscuit is larger and heavier, so it runs well above 71 kcal. These figures only apply to the plain biscuit. McVitie's Digestives The Original Biscuits, typical values per 100 g and per biscuit (Ocado)

NutriScore by Health Goals

Health Goal	NutriScore	Why This Score?
Weight Loss		At 71 kcal a biscuit it fits a calorie budget, but it is energy-dense (about 483 kcal per 100 g) and low in protein and fiber, so it does little to keep you full. McVitie's Digestive Biscuit, 1 biscuit (15 g) (FatSecret); McVitie's Digestives The Original Biscuits, typical values per 100 g and per biscuit (Ocado)
Muscle Gain		Only 1 g of protein per biscuit. It adds carbs and fat but does nothing for recovery. McVitie's Digestives The Original Biscuits, typical values per 100 g and per biscuit (Ocado)
Diabetes Management		About 9 g of carbs per biscuit is easy to count, but the refined flour and 2.2 g of sugar can raise glucose, and portions tend to creep up. Count the biscuits and pair them with protein. McVitie's Digestives The Original Biscuits, typical values per 100 g and per biscuit (Ocado); 8 tips for healthy eating (NHS)
Heart Health		Around 1.5 g of saturated fat per biscuit adds up quickly against the NHS limits of 20 g for women and 30 g for men, and fiber is low. McVitie's Digestives The Original Biscuits, typical values per 100 g and per biscuit (Ocado); How to eat less saturated fat (NHS)
Pregnancy		A plain baked biscuit is a safe snack and a common comfort food. It supplies little nutrition, so it works as an occasional extra, not a snack to rely on. McVitie's Digestives The Original Biscuits, typical values per 100 g and per biscuit (Ocado); The Eatwell Guide (NHS)

PERSONALIZED NUTRITION

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Blood Sugar Response to Digestive Biscuit

One digestive has about 9 g of carbohydrate, mostly refined flour and 2.2 g of sugar, so the rise is small: roughly 10 mg/dL above baseline at the 30-minute mark, back to baseline by 2 hours. Two or three biscuits scale that up, and eating them on an empty stomach or with sweet tea makes the peak sharper. The curve is an illustrative estimate from the carb count, not a measured response. McVitie's Digestives The Original Biscuits, typical values per 100 g and per biscuit (Ocado); 8 tips for healthy eating (NHS)

Typical Glucose Response Curve

Not medical advice

How to flatten the spike

Stop at two biscuits and count the carbs: about 9 g each.
Eat them after a meal or with a protein snack such as a boiled egg or Greek yogurt instead of on their own.
Skip sugar in the tea or coffee you dunk them in.
Take a 10-minute walk after a larger tea-time portion to flatten the rise.
If you test your glucose, check at 60 minutes after your usual portion to see your own response.

Cultural Significance

The digestive is a British wheatmeal biscuit, and the name is usually traced to the bicarbonate of soda in the original recipe, which was believed to aid digestion. McVitie's Original is the best-known version. It is the UK tea-time biscuit for dunking and the usual crumb base for no-bake cheesecake. Wheat-based digestive biscuits from Britannia, Parle and McVitie's are also sold in India and other markets, so brand-specific numbers differ from the generic figures on this page.

Compare & Substitute

Digestive Biscuit vs Similar Foods

Nutrient	Rich Tea biscuit (1 biscuit, about 8 g)	Oatcake (1 biscuit, about 10 g)	Plain rice cake (1 cake, about 9 g)	Small apple (1 apple, about 150 g)
Calories	35 kcal	45 kcal	35 kcal	78 kcal
Protein	0.5g	1.2g	0.7g	0.4g
Carbohydrates	6g	6g	7.3g	20.7g
Fat	1g	1.8g	0.3g	0.3g

Frequently Asked Questions

How many calories are in a digestive biscuit?

One plain digestive biscuit (about 15 g) has about 71 calories, with 3.1 g fat, 9.3 g carbs, 1 g protein and 2.2 g sugar. Two biscuits are 142 calories.

How many calories are in 100 g of digestive biscuits?

About 483 kcal per 100 g for McVitie's Original Digestives, with 21.3 g fat, 63.6 g carbohydrate, 15.1 g sugars, 3.7 g fiber and 7 g protein. Other brands vary by a few percent.

Are digestive biscuits healthy?

They are a standard biscuit with some wholemeal flour. Fiber is about 0.5 g per biscuit and about half the fat is saturated, so the NHS puts biscuits in the group of foods to eat less often and in small amounts.

Can people with diabetes eat digestive biscuits?

A biscuit or two can fit if you count the carbs, about 9 g each. Eat them with a protein food, skip sugar in the tea, and check your glucose to see how you respond.

How many carbs are in a digestive biscuit?

About 9.3 g of carbohydrate per biscuit, of which 2.2 g is sugar and 0.5 g is fiber.

Do chocolate digestives have more calories?

Yes. The chocolate coating adds sugar and fat, and the biscuit is larger, so one chocolate digestive is well above 71 kcal. Check the pack for the exact figure.