Mashed Yam

Calories in Mashed Yam are approximately 118 kcal per 100 g, making it a moderate-energy starchy food. How many calories in Mashed Yam? A 100 g serving provides 27.9 g of carbohydrates, 1.5 g of protein, 0.2 g of fat, and 4.1 g of dietary fiber, with only 9 mg of sodium. Most of its energy comes from complex carbohydrates, and its very low fat content means the calorie count stays modest unless butter, cream, milk, or sugar is added during preparation. These values are based on USDA FoodData Central and TACO (Tabela Brasileira de Composição de Alimentos, UNICAMP) reference data for cooked yam, and actual values vary with cultivar, water content, and recipe.

Nutrition facts (per 100 g)

Vitamins and minerals

Yam (Dioscorea species) is valued mainly as a source of energy from starch, but it also contributes useful micronutrients. Per 100 g, it provides about 4.1 g of dietary fiber, which supports intestinal transit and contributes to satiety. Its fiber content is a practical advantage over refined white potato mash, which typically contains less fiber per equivalent portion.

Yam is a notable source of potassium, a mineral essential for fluid balance, nerve signaling, and normal muscle contraction. Its low sodium content of 9 mg per 100 g makes it a suitable choice for people monitoring salt intake. Yam also contains manganese, which participates in carbohydrate and lipid metabolism and antioxidant enzyme function, along with smaller amounts of vitamin B6, which is involved in amino acid metabolism and neurotransmitter synthesis. Vitamin C content varies considerably among yam varieties and is generally lower after cooking.

Because the protein content is modest at 1.5 g per 100 g, yam should not be considered a primary protein source. Its nutritional value lies in its carbohydrate, fiber, and mineral profile. Micronutrient amounts differ by species, cultivar, and processing, so consulting TACO or USDA FoodData Central entries for the specific variety is recommended for precise values.

Diet impact

For muscle hypertrophy, yam can be a practical source of carbohydrate to support training energy and glycogen replenishment, especially around workouts. Its 27.9 g of carbohydrate per 100 g provides readily usable energy, and combining it with a protein source such as chicken, fish, eggs, or legumes improves the overall amino acid supply for muscle protein synthesis. Because the protein content of yam itself is low at 1.5 g per 100 g, it should be paired with adequate protein rather than relied upon for it. Calories in Mashed Yam are moderate, so it fits well into a surplus or maintenance diet when portions are planned.

For weight loss and satiety, yam offers a favorable combination of 4.1 g of fiber and low fat per 100 g, which can help people feel full for longer than refined starches with less fiber. Its energy density is moderate rather than high, so a 150 g portion provides roughly 175 kcal when prepared without added fat. Calories in Mashed Yam rise quickly with butter, cream, or sugar, so keeping preparation simple supports weight management. In low carb or ketogenic diets, yam is generally not suitable because its carbohydrate content is high relative to typical daily limits of about 20 to 50 g net carbohydrate. Yam is naturally plant-based and vegan-friendly when prepared without animal-derived ingredients such as butter or milk, making it a useful staple for vegan and vegetarian diets, provided protein needs are met from other plant sources such as legumes, tofu, or seeds.

Preparation variations

The calorie and nutrient profile of yam changes with the cooking method, mainly because of added fats and liquids. Raw yam has approximately 118 kcal per 100 g on a fresh-weight basis, with values near 27 to 28 g of carbohydrate and very little fat. Boiling yam without added fat keeps the energy density nearly the same, at roughly 115 to 120 kcal per 100 g, although boiling can leach some water-soluble vitamins such as vitamin C and some B vitamins into the cooking water. Steaming preserves more of these micronutrients than boiling.

Mashed yam is usually prepared by boiling or steaming and then mashing with added ingredients. Plain mashed yam without fat stays close to 118 kcal per 100 g. Adding one tablespoon of butter (about 14 g, roughly 100 kcal) to a 200 g portion raises the energy by about 50 kcal per 100 g. Adding whole milk or cream increases both calories and saturated fat, while sugar or condensed milk substantially raises the carbohydrate and calorie content.

Grilled or baked yam, cooked without added fat, has a similar energy density to boiled yam, but moisture loss during baking concentrates nutrients per gram, so values per 100 g can be slightly higher. Baking or grilling with a small amount of oil adds roughly 40 kcal per teaspoon of oil. Frying yam in oil is the most energy-dense option: yam absorbs oil during frying, and fried portions can reach 200 to 250 kcal per 100 g depending on oil uptake and thickness. Fried yam also contains more fat, and its fiber and potassium remain largely intact, but the overall nutritional balance shifts toward fat and calories.

Frequently asked questions

Does Mashed Yam make you fat?

No, Mashed Yam does not make you fat on its own. A 100 g serving contains about 118 kcal, 27.9 g of carbohydrates, and only 0.2 g of fat. Weight gain depends on total daily energy intake, and calories rise mainly when butter, cream, sugar, or excess portions are added. Within a balanced diet and controlled portion sizes, it does not contribute to weight gain.

Can you eat Mashed Yam at night?

Yes, you can eat Mashed Yam at night. Its 4.1 g of fiber per 100 g supports digestion and provides a feeling of fullness, and its low fat content makes it easier to digest than heavier, fatty dishes. A portion of about 100 to 150 g is a sensible serving for an evening meal, especially when combined with a protein source and vegetables.

Is Mashed Yam healthy?

Yes, Mashed Yam can be a healthy choice when prepared simply. Per 100 g, it provides about 27.9 g of carbohydrates for energy, 4.1 g of dietary fiber for digestive health, and potassium, a mineral important for fluid balance and muscle function. A practical caveat is that it is low in protein at 1.5 g per 100 g, so it should be paired with protein. Its sodium content is low at 9 mg per 100 g, but added salt or butter during preparation can increase sodium and calories.