Back Bacon vs Streaky Bacon: Calories, Protein & Which Is Better?
Two grilled rashers of back bacon (~50g) have about 108 calories, while two grilled rashers of streaky bacon (~30g) have about 120 calories. Back bacon is the leaner cut from the loin, while streaky bacon comes from the fattier belly, which is why it's more calorie-dense despite the smaller typical serving.
🥓 Back Bacon
Calories per 100g: ~215 kcal
Per 2 rashers grilled (~50g): ~108 kcal
Protein: 25g · Carbs: 0.5g · Fat: 12.5g (per 100g)
Fiber: 0g per 100g
Best for: a leaner everyday bacon choice
🥓 Streaky Bacon
Calories per 100g: ~400 kcal
Per 2 rashers grilled (~30g): ~120 kcal
Protein: 24g · Carbs: 0.7g · Fat: 34g (per 100g)
Fiber: 0g per 100g
Best for: an occasional, richer-flavored treat
Back Bacon vs Streaky Bacon: side-by-side comparison
| Factor | Back Bacon | Streaky Bacon | Better choice |
|---|---|---|---|
| Calories (per 100g) | ~215 kcal | ~400 kcal | Back Bacon (by far) |
| Calories (typical serving) | ~108 kcal (2 rashers) | ~120 kcal (2 rashers) | Back Bacon |
| Protein (per 100g) | 25g | 24g | Roughly equal |
| Carbs (per 100g) | 0.5g | 0.7g | Roughly equal |
| Fat (per 100g) | 12.5g | 34g | Back Bacon |
| Sodium | ~1200mg per 100g | ~1350mg per 100g | Back Bacon (marginal) |
| Typical serving size | 2 rashers grilled (~50g) | 2 rashers grilled (~30g) | — |
| Weight loss suitability | Better — leaner, more protein per calorie | Harder — high fat density | Back Bacon |
| Muscle gain suitability | Very good — high protein, moderate fat | Good — protein plus extra calories | Back Bacon |
| Best use case | Everyday breakfast bacon | Occasional richer treat | Depends on frequency |
Values come from the CalorieMetrica nutrition database. Homemade portions vary by recipe, brand and cooking method — the same data behind the Food Compare tool and Meal Planner.
Calories: back bacon vs streaky bacon
The difference per 100g is dramatic — back bacon comes in at about 215 kcal versus streaky bacon's 400 kcal, nearly double. This comes down to which part of the pig each cut is from: back bacon is cut from the leaner loin, while streaky bacon comes from the fattier belly, giving it those characteristic white fat streaks running through the meat.
Because streaky bacon's typical serving (2 rashers, ~30g) is smaller than back bacon's (2 rashers, ~50g), the calorie gap narrows in real servings — about 108 kcal for back bacon versus 120 kcal for streaky bacon. Still, gram for gram, back bacon is clearly the leaner cut, and eating equal weights would show a much bigger difference.
Nutrition comparison
Protein content is close between the two (25g vs 24g per 100g), since both are pork products with similar muscle content — the difference is almost entirely in fat. Back bacon's 12.5g fat per 100g is roughly a third of streaky bacon's 34g, making back bacon the far more protein-efficient choice.
Sodium is high in both cuts, as is typical for cured and smoked bacon, so anyone watching salt intake should moderate portions of either. Neither bacon type offers meaningful fiber or micronutrients beyond B vitamins and zinc from the pork itself. Check your daily sodium and fat targets with the Macro Calculator.
Which is better for weight loss?
Back bacon is clearly the better choice for weight loss — its lower fat content per 100g means you get more protein for your calorie budget, and it's easy to enjoy 2-3 rashers without a big calorie hit.
Streaky bacon can still fit an occasional weight-loss-friendly meal in a small portion, especially if grilled to render out extra fat, but it shouldn't be the everyday default if you're watching calories closely. Track your target with the TDEE Calculator.
Which is better for muscle gain?
Back bacon offers a better protein-to-fat ratio for muscle gain, giving you a solid protein contribution without excessive saturated fat eating into your macro budget. It pairs well with eggs for a classic high-protein breakfast.
Streaky bacon's extra fat and calories can still work in a bulking diet where extra calories are welcome, but back bacon remains the more efficient choice if protein is your priority. Check your target with the Protein Calculator.
Which is healthier overall?
Back bacon is generally the healthier everyday choice thanks to its significantly lower fat and saturated fat content, while still delivering nearly identical protein to streaky bacon. Streaky bacon's richer flavor comes at a real cost in fat density.
Both are processed, cured meats, so neither should be a daily staple regardless of which cut you choose — moderate frequency matters for cured meats in general, particularly for cardiovascular health. If you have concerns about sodium or cholesterol, discuss bacon frequency with your doctor.
Back bacon and streaky bacon in breakfast traditions
Back bacon is the standard in British and Irish full breakfasts, prized for its leaner, meatier bite alongside eggs, beans and toast. Streaky bacon is more common in American breakfasts, often cooked until crisp and served alongside pancakes or eggs, its higher fat content rendering out during cooking for a crunchier texture.
Both cuts have found their way into international breakfast menus and bacon-topped dishes worldwide. See more in the Bacon vs Sausage comparison for another breakfast protein matchup.
Practical meal examples
Weight-loss breakfast (~250 kcal): 2 rashers back bacon (~108 kcal) + 2 eggs (~156 kcal) — high protein, moderate calories.
Muscle-gain plate (~450 kcal): 2 rashers back bacon (~108 kcal) + 3 eggs (~233 kcal) + 1 slice toast (~70 kcal) — about 45g protein.
Occasional indulgent breakfast (~350 kcal): 2 rashers streaky bacon (~120 kcal) + 2 eggs (~156 kcal) + 1 slice toast (~74 kcal) — an occasional richer treat.
Build any of these in the Meal Planner.
FAQs: Back Bacon vs Streaky Bacon
Which has fewer calories, back bacon or streaky bacon?
Back bacon is significantly lower in calories at about 215 kcal per 100g versus streaky bacon's 400 kcal, since back bacon comes from the leaner loin while streaky bacon comes from the fattier belly.
Is back bacon healthier than streaky bacon?
Yes, generally — back bacon has roughly a third of the fat of streaky bacon per 100g while offering nearly identical protein, making it the leaner, more protein-efficient choice.
Which has more protein, back bacon or streaky bacon?
They're very close — back bacon has 25g protein per 100g versus streaky bacon's 24g, so protein content isn't the deciding factor between the two; fat content is.
Can I eat bacon every day?
Regular consumption of any processed, cured meat like bacon is generally not recommended for daily eating due to sodium and preservative content. Both back and streaky bacon are best enjoyed a few times a week rather than daily.
Which is better for weight loss, back bacon or streaky bacon?
Back bacon is the better choice for weight loss thanks to its much lower fat content per 100g, giving you more protein for fewer calories.
Why is streaky bacon fattier than back bacon?
Streaky bacon is cut from the pork belly, which naturally has more fat marbled through the meat, while back bacon comes from the leaner loin — the cut of the pig is what determines the fat difference.
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📊 Values are practical estimates from the CalorieMetrica database. Homemade portions vary with recipe, brand and cooking method. See Data Sources.