Lemon vs. Sweet Potatoes

Nutrition comparison of Lemon and Sweet Potatoes


Ever wonder how your favorite foods stack up against each other in terms of nutrition?

We compared the nutritional contents of lemon versus sweet potatoes (100g each) below using 2020 USDA and NIH data[1].

For a quick recap of significant nutrients and differences in lemon and sweet potatoes:

  • Both lemon and sweet potatoes are high in dietary fiber.
  • Lemon has 54% less carbohydrates than sweet potato.
  • Lemon has 66% less calories than sweet potato.
  • Lemon is an excellent source of Vitamin C.
  • Sweet potato has more riboflavin, niacin, pantothenic acid and Vitamin B6.
  • Sweet potato is an excellent source of Vitamin A and potassium.
Detailed nutritional comparison of lemon and sweet potatoes is analyzed below. You can also visualize the nutritional comparison for a custom portion or serving size and see how the nutrition compares.

USDA sources for nutritional information: Lemon (Lemons, raw, without peel) and Sweet Potatoes (Sweet potato, raw, unprepared) . Have a correction or suggestions? Shoot us an email.


Image of Lemon src
Image of Sweet Potatoes src

Calories and Carbs

calories

Lemon has 66% less calories than sweet potato - lemon has 29 calories per 100 grams and sweet potato has 86 calories.

For macronutrient ratios, lemon is lighter in carbs, heavier in fat and similar to sweet potatoes for protein. Lemon has a macronutrient ratio of 10:84:6 and for sweet potatoes, 7:92:1 for protein, carbohydrates and fat from calories.

Macro Ratios from Calories:

Lemon Sweet Potatoes
Protein 10% 7%
Carbohydrates 84% 92%
Fat 6% 1%
Alcohol ~ ~

carbohydrates

Lemon has 54% less carbohydrates than sweet potato - lemon has 9.3g of total carbs per 100 grams and sweet potato has 20.1g of carbohydrates.

dietary fiber

Both lemon and sweet potatoes are high in dietary fiber. Lemon is very similar to lemon for dietary fiber - lemon has 2.8g of dietary fiber per 100 grams and sweet potato has 3g of dietary fiber.

sugar

Lemon and sweet potatoes contain similar amounts of sugar - lemon has 2.5g of sugar per 100 grams and sweet potato has 4.2g of sugar.

Protein

protein

Lemon and sweet potatoes contain similar amounts of protein - lemon has 1.1g of protein per 100 grams and sweet potato has 1.6g of protein.

Fat

saturated fat

Both lemon and sweet potatoes are low in saturated fat - lemon has 0.04g of saturated fat per 100 grams and sweet potato has 0.02g of saturated fat.

Vitamins

Vitamin C

Lemon is an excellent source of Vitamin C and it has 21 times more Vitamin C than sweet potato - lemon has 53mg of Vitamin C per 100 grams and sweet potato has 2.4mg of Vitamin C.

Vitamin A

Sweet potato is an excellent source of Vitamin A and it has 708 times more Vitamin A than lemon - lemon has 1ug of Vitamin A per 100 grams and sweet potato has 709ug of Vitamin A.

Vitamin E

Lemon and sweet potatoes contain similar amounts of Vitamin E - lemon has 0.15mg of Vitamin E per 100 grams and sweet potato has 0.26mg of Vitamin E.

Vitamin K

Sweet potatoes and lemon contain similar amounts of Vitamin K - sweet potato has 1.8ug of Vitamin K per 100 grams and lemon does not contain significant amounts.

The B Vitamins

Sweet potato has more riboflavin, niacin, pantothenic acid and Vitamin B6. Both lemon and sweet potatoes contain significant amounts of thiamin and folate.

Lemon Sweet Potatoes
Thiamin 0.04 MG 0.078 MG
Riboflavin 0.02 MG 0.061 MG
Niacin 0.1 MG 0.557 MG
Pantothenic acid 0.19 MG 0.8 MG
Vitamin B6 0.08 MG 0.209 MG
Folate 11 UG 11 UG

Minerals

calcium

Lemon and sweet potatoes contain similar amounts of calcium - lemon has 26mg of calcium per 100 grams and sweet potato has 30mg of calcium.

iron

Lemon and sweet potatoes contain similar amounts of iron - lemon has 0.6mg of iron per 100 grams and sweet potato has 0.61mg of iron.

potassium

Sweet potato is an excellent source of potassium and it has 144% more potassium than lemon - lemon has 138mg of potassium per 100 grams and sweet potato has 337mg of potassium.

Antioxidants and Phytonutrients

flavonoids

Naturally occuring in fruits and vegetables, flavonoids are associated with many health benefits and used in a variety of medicinal and pharmaceutical applications. [2][3]

For specific flavonoid compounds, both lemon and sweet potatoes contain small amounts of kaempferol.

Lemon Sweet Potatoes
luteolin 1.9 mg 0.02 mg
kaempferol 0.03 mg 0.01 mg
myricetin 0.5 mg 0.03 mg
Quercetin 1.14 mg 0.01 mg
apigenin ~ 0.01 mg

carotenoids

Carotenoids are micronutrients commonly found in plants and some animal products. An example is beta-carotene, the notable carotenoid which is a popular source of Vitamin A.[4][5]

For specific types of carotenoids, both lemon and sweet potatoes contain small amounts of alpha-carotene.

Lemon Sweet Potatoes
beta-carotene 3 UG 8509 UG
alpha-carotene 1 UG 7 UG
lutein + zeaxanthin 11 UG ~

Omega-3 and Omega-6

omega 3s

For omega-3 fatty acids, lemon has more alpha linoleic acid (ALA) than sweet potato per 100 grams.

Lemon Sweet Potatoes
alpha linoleic acid 0.026 G 0.001 G
Total 0.026 G 0.001 G

omega 6s

Comparing omega-6 fatty acids, lemon has more linoleic acid than sweet potato per 100 grams.

Lemon Sweet Potatoes
linoleic acid 0.063 G 0.013 G
Total 0.063 G 0.013 G



Customize your serving size


The comparison below is by weight, but sometimes 100g isn't that intuitive of a measurement for food. View a custom portion comparison (e.g. cups, oz, package).

You can try adding or subtracting the amount of either Lemon or Sweet Potatoes .

Note: The specific food items compared are: Lemon (Lemons, raw, without peel) and Sweet Potatoes (Sweet potato, raw, unprepared) .

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FAQ

Does lemon or sweet potatoes contain more calories in 100 grams?
Lemon has 70% less calories than sweet potato - lemon has 29 calories in 100g and sweet potato has 86 calories.

Does lemon or sweet potatoes have more carbohydrates?
By weight, lemon has 50% fewer carbohydrates than sweet potato - lemon has 9.3g of carbs for 100g and sweet potato has 20.1g of carbohydrates.

Does lemon or sweet potatoes contain more potassium?
Sweet potato is a rich source of potassium and it has 140% more potassium than lemon - lemon has 138mg of potassium in 100 grams and sweet potato has 337mg of potassium.