Written by Elise Mandl, BSc, APD — Medically reregarded by Katherine Marengo LDN, R.D., Nutrition — Updated on July 14, 2020

Diet sodas are famous bevereras almost everywhere the civilization, especially among human being that desire to alleviate their sugar or calorie intake.

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Instead of sugar, fabricated sweeteners, such as aspartame, cyclamates, saccharin, acesulfame-k, or sucralose, are supplied to sweeten them.

Ala lot of eincredibly renowned sugar-sweetened beverage on the sector has a “light” or a “diet” version — Diet Coke, Coke Zero, Pepsi Max, Sprite Zero, and so on.

Diet sodas were initially presented in the 1950s for civilization through diabetes, though they were later on marketed to world trying to regulate their weight or alleviate their sugar intake.

Regardless of being complimentary of sugar and calories, the health impacts of diet drinks and artificial sweeteners are controversial.

Diet soda isn’t nutritious

Diet soda is essentially a mixture of carbonated water, fabricated or organic sweetener, colors, spices, and also various other food additives.

It normally has actually incredibly few to no calories and also no significant nutrition. For instance, one 12-ounce (354-mL) can of Diet Coke contains no calories, sugar, fat, or protein and also 40 mg of sodium (1).

However, not all sodas that use synthetic sweeteners are low in calories or sugar-complimentary. Some usage sugar and sweetener together. For example, one have the right to of Coca-Cola Life, which includes the natural sweetener stethrough, has 90 calories and 24 grams of sugar (2).

While recipes differ from brand to brand also, some prevalent ingredients in diet soda include:


Diet soda is a mixture of carbonated water, artificial or herbal sweeteners, colors, flavors, and additional components choose vitamins or caffeine. Many arrays contain zero or extremely few calories and also no substantial nutrition.

Effects on weight loss are conflicting

Due to the fact that diet soda is normally calorie-totally free, it would be organic to assume it could aid weight loss. However, research study suggests the association might not be so straightforward.

Several observational studies have discovered that making use of artificial sweeteners and also drinking high quantities of diet soda is associated through an raised danger of weight problems and also metabolic syndrome (7, 8, 9, 10).

Scientists have actually suggested that diet soda may boost appetite by stimulating hunger hormones, transforming sweet taste receptors, and also triggering dopamine responses in the brain (11, 12, 13, 14).

Given that diet soft drinks have no calories, these responses might cause a higher intake of sweet or calorie-dense foods, leading to weight gain. However before, evidence of this is not constant in human research studies (5, 11, 15).

Another theory says that diet soda’s correlation to weight obtain might be defined by human being via negative dietary habits drinking more of it. The weight obtain they suffer might be resulted in by their existing dietary behavior — not diet soda (16, 17).

Experimental researches carry out not support the insurance claim that diet soda reasons weight obtain. In truth, these studies have found that replacing sugar-sweetened drinks through diet soda can cause weight loss (18, 19).

One study had overweight participants drink 24 ounces (710 mL) of diet soda or water per day for 1 year. At the end of the study, the diet soda group had knowledgeable an average weight loss of 13.7 pounds (6.21 kg), compared via 5.5 pounds (2.5 kg) in the water group (20).

However, to add to the confusion, there’s evidence of prejudice in the clinical literature. Studies funded by the synthetic sweetener sector have actually been uncovered to have actually more favorable outcomes than non-market research studies, which may threaten the validity of their results (21).

Overall, even more high quality research is necessary to recognize the true effects of diet soda on weight loss.


Observational research studies link diet soda with obesity. However before, it’s not clear whether diet soda is a cause of this. Experipsychological research studies present positive impacts on weight loss, however these can be affected by industry funding.

Although diet soda has no calories, sugar, or fat, it has been linked to the advancement of form 2 diabetes and also heart illness in a number of researches.

Research has actually found that just one serving of an artificially sweetened drink per day is linked through an 8–13% higher hazard of type 2 diabetes (22, 23).

A examine in 64,850 womales detailed artificially sweetened drinks were associated via a 21% better risk of emerging form 2 diabetes. However before, this was still half the risk associated via continual sugary drinks. Other researches have oboffered equivalent results (24, 25, 26, 27).

Conversely, a current testimonial uncovered that diet soda is not connected through an increased risk of diabetes. Also, another examine concluded that any kind of association might be defined by the existing health and wellness status, weight transforms, and body mass index of participants (28, 29).

Diet soda has likewise been connected to boosted dangers of high blood press and also heart disease.

A review of 4 research studies consisting of 227,254 civilization oboffered that for each serving of artificially sweetened beverage per day, tbelow is a 9% boosted hazard of high blood press. Other studies have found similar results (30, 31, 32).

In addition, one research has actually attached diet soda to a small boost in the hazard of stroke, but this was just based upon observational information (33).

Since a lot of of the researches were observational, it might be that the association might be described another means. It’s possible that world who were currently at threat of diabetes and high blood push decided to drink even more diet soda (24, 34, 35).

More straight experimental study is needed to determine whether there’s any true causal partnership between diet soda and also boosted blood sugar or blood pressure.


Observational researches have linked diet soda to type 2 diabetes, high blood push, and an increased danger of stroke. However before, there’s a absence of study on the possible causes of these outcomes. They might be due to preexisting hazard factors favor obesity.

Drinking diet soda has been attached to an raised threat of chronic kidney disease.

A recent research analyzed the diets of 15,368 people and also found that the threat of developing end-stage kidney illness increased via the variety of glasses of diet soda consumed per week.

Compared through those who consumed much less than one glass per week, world who drank even more than salso glasses of diet soda per week had actually nearly double the risk of developing kidney condition (36).

A said reason for the kidney damage is the high phosphorus content of soda, which may boost the acid fill on the kidneys (36, 37).

However before, it has actually likewise been suggested that human being consuming high amounts of diet soda may do so to compensate for other negative dietary and way of living components that may independently contribute to the development of kidney disease (36, 38).

Interestingly, studies investigating the impacts of diet soda on the advancement of kidney stones have uncovered combined outcomes.

One observational examine detailed that diet soda drinkers have actually a slightly raised hazard of kidney rock advancement, but the hazard was much smaller than the hazard associated with drinking constant soda. In addition, this study has actually not been supported by other research (39).

Another study reported that the high citprice and malate content of some diet sodas might aid treat kidney stones, especially in world through low urine pH and uric acid stones. However before, even more research study and also humale research studies are essential (40).


Observational research studies have uncovered an association between drinking many diet soda and the development of kidney condition. If diet soda does reason this, a potential reason might be raised acid load on the kidneys due to its high phosphorus content.

Drinking diet soda while pregnant has been attached to some negative outcomes, consisting of preterm shipment and also childhood weight problems.

A Norwegian research in 60,761 pregnant women found that intake of artificially sweetened and also sugar-containing drinks was associated with an 11% higher threat of preterm shipment (41).

Earlier Danish research study supports these findings. A examine in virtually 60,000 woguys uncovered that woguys who consumed one serving of diet soda per day were 1.4 times even more most likely to provide preterm than those who did not (42).

However before, recent study in 8,914 womales in England also did not discover any association between diet cola and preterm delivery. However before, the authors admitted that the examine may not have actually been substantial sufficient and also had actually been restricted to diet cola (43).

It’s important to note that these researches were just observational and also sell no explanation of specifically just how diet soda may contribute to preterm birth.

Furthermore, consuming artificially sweetened drinks while pregnant is considerably associated via an raised hazard of childhood weight problems (44).

One study uncovered that the daily intake of diet drinks throughout pregnancy doubled the threat of a baby being overweight at 1 year of age (45).

Further research is required to analyze the potential biological causes and irreversible health risks for children exposed to artificially sweetened sodas in the womb.


Large research studies have actually attached diet soda to preterm shipment. However before, a causal connect has actually not been discovered. Furthermore, infants of mothers that drank diet soda while pregnant are at an boosted danger of being overweight.

There are several various other recorded health effects of diet sodas, including:

While some of these results are exciting, even more experimental study is required to determine whether diet soda causes these problems, or if the findings are due to chance or various other determinants.


Diet soda might enhance fatty liver and does not show up to increase heartburn or the danger of cancer. However before, it might alleviate blood sugar control and also increase the risks of depression, osteoporosis, and also tooth degeneration. However, even more research study is required.

Research on diet soda has actually created the majority of conflicting proof.

One explacountry for this conflicting indevelopment is that most of the research is observational. This suggests it observes fads, however there’s a lack of indevelopment around whether diet soda intake is a cause or ssuggest connected via the true cause.

Thus, while some of the research sounds fairly alarming, even more high high quality speculative studies are necessary prior to concrete conclusions can be drawn about the wellness effects of diet soda.

Regardless, one point is certain: Diet soda does not add any nutritional value to your diet.

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So, if you’re looking to relocation constant soda in your diet, other alternatives may be better than diet soda. Next time, attempt an alternative favor milk, coffee, babsence or herbal tea, or fruit-infoffered water.