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French fries vs. Onion rings — Nutrition and Health Impacts

Article author photo Jack  Yacoubian by Jack Yacoubian | Last updated on February 15, 2024
Medically reviewed by Igor Bussel Article author photo Igor Bussel
Onion rings
vs
French fries

Summary

French fries are higher in calories, carbs, and trans fats. In comparison, onion rings are higher in sodium. Yet, note that onion rings are high in calories, carbs, and trans fats as well. They are both associated with negative health impacts such as diabetes, obesity, and cardiovascular health problems.

Introduction

This article compares two types of sides in fast food: onion rings and fries. What is the difference between these regarding nutrition and health impacts? 

One of the most significant points to take into consideration here is that both of them are deep-fried. Now, homemade fries or onion rings in air fryers are healthier than deep-fried ones. However, we are considering fast-food-grade deep-fried onion rings and fries here. 

Nutrition

Calories, trans fats, carbs, and sodium. Now, these are the red flag nutrients you should watch for in both of them. 
 

Fries are higher in calories, carbs, and trans fats. However, onion rings are higher in sodium mainly due to the breading and crust mix, which contains sodium and the additional salt added after frying. 

Macronutrient Comparison

Macronutrient breakdown side-by-side comparison
4% 14% 34% 46%
Protein: 4.14 g
Fats: 14.3 g
Carbs: 33.79 g
Water: 46.37 g
Other: 1.4 g
3% 15% 41% 39% 2%
Protein: 3.43 g
Fats: 14.73 g
Carbs: 41.44 g
Water: 38.55 g
Other: 1.85 g
Contains more ProteinProtein +20.7%
Contains more WaterWater +20.3%
Contains more CarbsCarbs +22.6%
Contains more OtherOther +32.1%
~equal in Fats ~14.73g

Health Impact

Now consider onion rings and french fries, which are low-volume and high-calorie foods. They won’t cause satiety, and they will make you get hungry very quickly, and overall this is a problem. However, when you consume them in moderation, not very frequently, and associate them with protein and a salad, you won't have a problem because, as we know, the dose makes the poison. Eating fast food and fried food such as onion rings and fries daily would cause major health problems such as hypertension, diabetes, atherosclerosis, and obesity (1,2,3,4). 

Now, considering which one between fries or onion rings is worse for your health, regarding data when it comes to nutrition, fries are higher in most red flag points such as carbs, calories, and trans fats. 
Having a sense of awareness of the quantity consumed is key as well. From a personal aspect, I would say it's very hard to live life without consuming fast food once in a while, especially with our lifestyles nowadays. 

Cardiovascular Health

Section reviewed by cardiologist Astghik Grigoryan Article author photo Astghik Grigoryan

Recent studies show that eating French fries and onion rings regularly may be detrimental to your health. This is because it can lead to an increase in “bad” LDL cholesterol levels and a decrease in “good” HDL cholesterol levels. This can put you at a higher risk of developing obesity and cardiovascular diseases. Therefore, it is recommended that you limit or avoid the regular consumption of such food to maintain better health (5). 

Additionally, french fries and onion rings are high in sodium, which may lead to fluid retention in the body and high blood pressure. It is important to note that fluid retention can significantly exacerbate symptoms in patients with heart failure.

Associating sauces and dips with fries and onion rings increases sodium, carbs, and calories. 

It's best to be aware of how much and how often we eat french fries and onion rings. Consuming them in low amounts and infrequently won't cause harm, however, eating them daily is a major problem. 

You can compare sauces in these articles, such as mayonnaise vs. honey mustard.

Another sauce and dip comparison to check is Thousand Islands vs. Blue Cheese Dressing.

Article author photo Jack  Yacoubian
Education: Haigazian Medical University
Last updated: February 15, 2024
Medically reviewed by Igor Bussel

Infographic

Onion rings vs French fries infographic
Infographic link

Mineral Comparison

Mineral comparison score is based on the number of minerals by which one or the other food is richer. The "coverage" charts below show how much of the daily needs can be covered by 300 grams of the food.
Magnesium Magnesium Calcium Calcium Potassium Potassium Iron Iron Copper Copper Zinc Zinc Phosphorus Phosphorus Sodium Sodium Manganese Manganese Selenium Selenium 12% 9.3% 11% 47% 24% 11% 30% 48% 45% 31%
Magnesium Magnesium Calcium Calcium Potassium Potassium Iron Iron Copper Copper Zinc Zinc Phosphorus Phosphorus Sodium Sodium Manganese Manganese Selenium Selenium 25% 5.4% 51% 30% 41% 14% 54% 27% 32% 4.9%
Contains more CalciumCalcium +72.2%
Contains more IronIron +54.3%
Contains more ManganeseManganese +40.9%
Contains more SeleniumSelenium +522.2%
Contains more MagnesiumMagnesium +105.9%
Contains more PotassiumPotassium +370.7%
Contains more CopperCopper +69.9%
Contains more ZincZinc +19%
Contains more PhosphorusPhosphorus +76.1%
Contains less SodiumSodium -43.2%

Vitamin Comparison

Vitamin comparison score is based on the number of vitamins by which one or the other food is richer. The "coverage" charts below show how much of the daily needs can be covered by 300 grams of the food.
Vitamin C Vit. C Vitamin A Vit. A Vitamin E Vit. E Vitamin D Vit. D Vitamin B1 Vit. B1 Vitamin B2 Vit. B2 Vitamin B3 Vit. B3 Vitamin B5 Vit. B5 Vitamin B6 Vit. B6 Vitamin B12 Vit. B12 Vitamin K Vit. K Folate Folate Choline Choline 5.3% 0% 9.2% 0% 46% 27% 25% 18% 27% 0% 85% 25% 5.8%
Vitamin C Vit. C Vitamin A Vit. A Vitamin E Vit. E Vitamin D Vit. D Vitamin B1 Vit. B1 Vitamin B2 Vit. B2 Vitamin B3 Vit. B3 Vitamin B5 Vit. B5 Vitamin B6 Vit. B6 Vitamin B12 Vit. B12 Vitamin K Vit. K Folate Folate Choline Choline 16% 0% 33% 0% 43% 9% 56% 35% 86% 0% 28% 23% 20%
Contains more Vitamin B2Vitamin B2 +197.4%
Contains more Vitamin KVitamin K +204.5%
Contains more Vitamin CVitamin C +193.8%
Contains more Vitamin EVitamin E +263%
Contains more Vitamin B3Vitamin B3 +122.7%
Contains more Vitamin B5Vitamin B5 +97.3%
Contains more Vitamin B6Vitamin B6 +217.9%
Contains more CholineCholine +243.9%
~equal in Vitamin A ~0IU
~equal in Vitamin D ~0µg
~equal in Vitamin B1 ~0.17mg
~equal in Vitamin B12 ~0µg
~equal in Folate ~30µg

Fat Type Comparison

Fat type breakdown side-by-side comparison
17% 23% 60%
Saturated Fat: Sat. Fat 2.137 g
Monounsaturated Fat: Mono. Fat 3 g
Polyunsaturated fat: Poly. Fat 7.633 g
17% 44% 39%
Saturated Fat: Sat. Fat 2.336 g
Monounsaturated Fat: Mono. Fat 5.969 g
Polyunsaturated fat: Poly. Fat 5.398 g
Contains more Poly. FatPolyunsaturated fat +41.4%
Contains more Mono. FatMonounsaturated Fat +99%
~equal in Saturated Fat ~2.336g

Comparison summary table

Pay attention to the rightmost column. It displays the amounts side by side, giving a clearer understanding of the difference.
Onion rings French fries
Lower in Saturated Fat ok
Lower in Glycemic Index ok
Lower in Sugar ok
Lower in Sodium ok
Lower in Cholesterol Equal
Lower in price Equal
Rich in minerals Equal
Rich in vitamins Equal

All nutrients comparison - raw data values

Nutrient Onion rings French fries Opinion
Calories 276kcal 312kcal French fries
Protein 4.14g 3.43g Onion rings
Fats 14.3g 14.73g French fries
Vitamin C 1.6mg 4.7mg French fries
Net carbs 31.59g 37.64g French fries
Carbs 33.79g 41.44g French fries
Magnesium 17mg 35mg French fries
Calcium 31mg 18mg Onion rings
Potassium 123mg 579mg French fries
Iron 1.25mg 0.81mg Onion rings
Sugar 5.1g 0.3g French fries
Fiber 2.2g 3.8g French fries
Copper 0.073mg 0.124mg French fries
Zinc 0.42mg 0.5mg French fries
Starch 25.58g Onion rings
Phosphorus 71mg 125mg French fries
Sodium 370mg 210mg French fries
Vitamin E 0.46mg 1.67mg French fries
Manganese 0.348mg 0.247mg Onion rings
Selenium 5.6µg 0.9µg Onion rings
Vitamin B1 0.185mg 0.17mg Onion rings
Vitamin B2 0.116mg 0.039mg Onion rings
Vitamin B3 1.349mg 3.004mg French fries
Vitamin B5 0.294mg 0.58mg French fries
Vitamin B6 0.117mg 0.372mg French fries
Vitamin K 34.1µg 11.2µg Onion rings
Folate 33µg 30µg Onion rings
Trans Fat 0.053g 0.06g Onion rings
Choline 10.7mg 36.8mg French fries
Saturated Fat 2.137g 2.336g Onion rings
Monounsaturated Fat 3g 5.969g French fries
Polyunsaturated fat 7.633g 5.398g Onion rings
Tryptophan 0.07mg Onion rings
Threonine 0.15mg Onion rings
Isoleucine 0.214mg Onion rings
Leucine 0.35mg Onion rings
Lysine 0.151mg Onion rings
Methionine 0.081mg Onion rings
Phenylalanine 0.243mg Onion rings
Valine 0.216mg Onion rings
Histidine 0.109mg Onion rings
Fructose 1.26g Onion rings
Omega-3 - ALA 0.789g 0.407g Onion rings
Omega-3 - Eicosatrienoic acid 0g 0.001g French fries
Omega-6 - Gamma-linoleic acid 0.047g 0.029g Onion rings
Omega-6 - Eicosadienoic acid 0.003g 0.007g French fries
Omega-6 - Linoleic acid 6.346g 4.898g Onion rings

Which food is preferable for your diet?

ok
ok
is better in case of low diet
Onion rings French fries
Low Calories diet ok
Low Fats diet ok
Low Carbs diet ok
Low Glycemic Index diet ok

People also compare

Vitamins & Minerals Daily Need Coverage Score

The summary scores indicate the extent to which this food can fulfill your daily vitamin and mineral requirements if you consume 3 servings, consisting of 100 grams of each (an approximation of 3 serving sizes).
Vitamins Daily Need Coverage Score
21%
Onion rings
27%
French fries
Minerals Daily Need Coverage Score
27%
Onion rings
28%
French fries

Comparison summary

Which food is lower in Saturated Fat?
Onion rings
Onion rings is lower in Saturated Fat (difference - 0.199g)
Which food is lower in glycemic index?
Onion rings
Onion rings is lower in glycemic index (difference - 70)
Which food is lower in Sugar?
French fries
French fries is lower in Sugar (difference - 4.8g)
Which food contains less Sodium?
French fries
French fries contains less Sodium (difference - 160mg)
Which food contains less Cholesterol?
?
The foods are relatively equal in Cholesterol (0 mg)
Which food is cheaper?
?
The foods are relatively equal in price ($)
Which food is richer in minerals?
?
It cannot be stated which food is richer in vitamins. See the charts below for detailed information. See the charts below for detailed information. See the charts below for detailed information.
Which food is richer in vitamins?
?
It cannot be stated which food is richer in vitamins. See the charts below for detailed information. See the charts below for detailed information. See the charts below for detailed information.

References

All the values for which the sources are not specified explicitly are taken from FDA’s Food Central. The exact link to the food presented on this page can be found below.

  1. Onion rings - https://fdc.nal.usda.gov/fdc-app.html#/food-details/170415/nutrients
  2. French fries - https://fdc.nal.usda.gov/fdc-app.html#/food-details/170698/nutrients

All the Daily Values are presented for males aged 31-50, for 2000-calorie diets.

Data provided by FoodStruct.com should be considered and used as information only. Please consult your physician before beginning any diet.