In the U.S., heart disease is the leading cause of death for both men and women. But while approximately 610,000 people die of heart disease each year across the nation, cancer is the condition that gets more attention. With reports that everything under (and including) the sun will increase cancer risk, it’s tough to know how to lead a truly healthy life without going to extremes.

You may have already taken steps to improve your overall well-being and reduce your environmental exposure. Since studies have found that levels of certain organics (like volatile organic compounds, or VOCs) can be two to five times higher indoors than outdoors, you might be inclined to switch your cleaning and personal care products to natural or DIY versions to ensure your habits don’t make you sick. You might also have quit smoking, dedicated yourself to a fitness regime, or embraced a more holistic diet in the hopes of increasing your lifespan. But although conventional wisdom tells us a glass of juice can help keep illnesses away, a new study has found that this may not actually be the case. In fact, your OJ could be the very thing that makes you sick.

At the very least, there’s a correlation between the beverages we drink on a daily basis and our cancer risk. According to a new study involving more than 100,000 French adults, drinking a small glass (approximately 100 milliliters) of a sugary drink containing more than 5% sugar — like fresh fruit juice or soda — each day has been linked to an 18% increase in cancer risk overall and a 22% increase in breast cancer risk.

Considering that Americans consumed 6.6 gallons of juices per capita in 2015, the results are a bit alarming. While most people know that soda consumption can lead to some unintended consequences, the majority of us believe that juice can provide a host of benefits for the body. But the association between sugary drink consumption and cancer risk was seen in both sodas and 100% fruit juices in the analysis, meaning that just because a beverage has natural origins doesn’t mean it’s all that good for you.

Of course, it’s important to remember that correlation does not equal causation. The study doesn’t prove that sugar or sugar-laden beverages definitively cause cancer; it merely suggests that there’s some kind of relationship between the two.

Researchers noted, “These results need replication in other large scale prospective studies. They suggest that sugary drinks, which are widely consumed in Western countries, might represent a modifiable risk factor for cancer prevention.”

For example, because the consumption of sugary drinks can increase an individual’s risk for obesity and weight gain, which can in turn increase cancer risk, the study may not be telling us anything we don’t already know. It may, however, be highlighting the fact that conventional health wisdom may not be backed up by scientific proof. So for those who feel that juicing is the key to a long life, this could be a wake-up call.

That said, lead researcher Dr. Mathilde Touvier told The Guardian that the occasional fruit juice or soda is probably okay.

Touvier explained, “The recommendation from several public health agencies is to consume less than one [sugary] drink per day. If you consume from time to time a sugary drink it won’t be a problem, but if you drink at least one glass a day it can raise the risk of several diseases — here, maybe cancer, but also with a high level of evidence, cardiometabolic diseases.”

Soda consumption is already down in many areas, particularly those that have levied taxes on the soda industry. In Philadelphia, soda purchases decreased by 1 billion ounces in the first year of their soda tax. Similar taxes have been passed in major cities in Colorado, Washington, California, and New York. As yet, there have been no taxes placed on companies operating within the fruit juice industry, but researchers are hopeful that studies like this could inform public policy in the future.

For now, it’s up to the individual consumer to make purchasing decisions that will support their optimal lifestyle. Seeing as a recent Harvard University study found that daily consumption of sugary beverages can increase early death risk, you might want to consider stocking your fridge with water, unsweetened teas, and naturally flavored seltzers instead.