Sweet potato · cooked
Values per 100 g — CIQUAL data (ANSES). Fibre: 2.5 g.
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A complete, filling carb
Sweet potato is a popular carb source in muscle building: 20 g of carbs per 100 g cooked (just 90 kcal), with fibre (2.5 g), potassium and plenty of beta-carotene (provitamin A). Its moderate glycaemic index makes it a steady fuel.
Low in calories for its volume, it is quite filling — a real asset when cutting, when you need to eat your fill while controlling calories.
Around training
Its carbs suit both pre-workout (gradual energy) and post-workout (glycogen refill). Its micronutrient richness makes it a 'nutrient-dense' starch, more valuable than a plain hit of starch.
Benchmark: 200 g of cooked sweet potato provide ~40 g of carbs and ~180 kcal — a generous carb portion for a reasonable calorie total.
How to cook it
Roasted (in cubes or whole), steamed or mashed, it makes a pleasant change from classic starches. Roasting concentrates its flavour; steaming keeps a slightly lower GI. No need to add fat, it is naturally tasty.
Like other starches, it batch-cooks and keeps a few days in the fridge.
More than just a starch
Where rice or pasta bring almost only starch, sweet potato adds micronutrients that matter to a lifter's daily diet. Its orange colour signals a high beta-carotene content (provitamin A, an antioxidant), and it is well supplied with potassium — a mineral involved in fluid balance and normal muscle function.
It is no 'miracle food', but calorie for calorie it beats a refined starch: you cover part of your carbs while topping up fibre and vitamins.
What to pair it with
Sweet potato goes with a protein source and vegetables.
Key takeaways
- 20 g carbs for 90 kcal/100 g: filling, rich in potassium and beta-carotene.
- Moderate GI: good fuel before/after training.
- Low in calories for its volume: an asset when cutting.
- Roasted, steamed or mashed; batch-cooks.
Frequently asked questions
Sweet potato or regular potato for muscle building?
Both are good carbs. Sweet potato brings more fibre, potassium and beta-carotene, with a slightly lower glycaemic index; regular potato is just as valid and often cheaper. Alternate based on taste.
Is sweet potato suitable for cutting?
Yes: its fibre and volume are quite filling for a reasonable calorie intake, which helps hold a deficit. Like any starch, adjust the portion to your calorie goal.
Sweet potato before or after training?
Both work. Before, its moderate-GI carbs release steady energy; after, they help refill muscle glycogen. What matters most is your daily carb total, not the exact timing.
Should you eat the sweet potato skin?
Yes, if well washed: the skin concentrates fibre and micronutrients. Roasted, it becomes pleasant to eat. Otherwise, peeled sweet potato is just as valid on the carb side.
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