The alkaline diet promotes the false idea that it is possible to change blood pH with diet. This is untrue, and major changes in blood pH could even be life-threatening. It is possible to change the pH of urine and saliva with diet. However, when the pH of these fluids changes, the pH of blood remains the same. Alkalinity means that something has a pH higher than 7.
The human body is naturally slightly alkaline , with a blood pH of around 7. The stomach is acidic, which allows it to digest food. The pH of saliva and urine changes depending on diet, metabolism, and other factors. Some research shows that cancer cells grow more rapidly in an acidic environment. Drawing on this research, supporters of the alkaline diet argue that a high blood pH could prevent cancer.
Studies on alkalinity and cancer, however, have typically involved cancer cells in a petri dish and not a human body. The foods that people eat on this diet can, however, help some maintain a healthy body weight. Doing so can help prevent weight-related health issues such as diabetes. However, some research suggests that an alkaline diet may improve health, though not in the way that its supporters claim. This offers several health benefits. Here are some of the benefits that alkaline diet supporters may claim, and the scientific research either supporting or refuting them:.
Ultimately, weight loss depends on consuming fewer calories than one burns. Diets lower in fat and calories may promote weight loss, but only when a person remains physically active and eats a healthful diet with variety.
According to a study , the typical diet of people in the United States is very acidic. This can challenge the kidneys. For people with kidney disease, a lower-acid diet may improve symptoms or even slow the course of the disease. For most people with chronic kidney disease , there is no need to follow a specific alkaline diet. Instead, simply reducing protein , such as milk, meat, and cheese, may help. Some proponents of this diet claim that it can reverse cancer or support chemotherapy. There is no scientific evidence supporting these claims , and no studies have performed direct tests on this claim.
However, significant evidence from a study suggests that reducing meat consumption and eating more fruits, vegetables, and whole grains might prevent cancer. It found that consuming vitamin C, vitamin A, fiber, and a Mediterranean-style diet might reduce cancer risk. The ACS advise avoiding processed foods, soft drinks, and many high-fat foods. Instead, it is more beneficial to eat a diet rich in fruit, vegetables, and whole grains. In the U. Lifestyle factors including poor nutrition and low activity levels are major contributors.
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Home How to Guide What is the alkaline diet? Claim the offer. Get Offer. The rationale behind the alkaline diet is this: Based on the types of foods we eat, our body and the kidneys in particular needs to do more or less compensating for optimal pH. For example, citrus fruits are acidic but are considered high alkaline foods because they have a low renal acid load. This may help clear up some confusion when looking at food lists for this diet. This brings us back to the initial question, does eating low-PRAL foods help us stay healthier or fight disease?
Not surprisingly, the data on this is mixed and there is no consensus on what an alkaline diet may look like over a lifespan. Likewise, it is conceivable that an eating pattern of high-PRAL acidic foods may lead to a depletion of alkaline buffers in our bodies — with the largest reserve of these chemicals coming from our bones. Foods at the alkaline end of the spectrum are largely fruits and vegetables, and time-honored nutrition advice tells us that a plant-based diet is best for our health.
However, a healthy eating pattern also includes lean meats and whole grains, which fall on the acidic end of the spectrum. For those looking to optimize their health, the Dietary Guidelines for Americans can be used as a foundation for healthy eating.
Again, the alkaline diet recommends consuming mostly fruits and vegetables, which is a pattern of eating recommended for preventing cancer. Patients with cancer, especially those undergoing treatment, are advised to maintain their current body weight with adequate calories and protein.
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