Juice Cleanses Can Lead to Inflammation, Study Finds
The study showed that three -day juice modes increase bacteria associated with intestinal permeability (sometimes called the “intestines”) and inflammatory conditions, which expresses concern about the long -term or re -use of only fruit and cleaning juices.
The researchers were surprised “how quickly and significantly changed the oral microbia,” says the senior author Melinda Ring, a doctor of medical sciences, a doctor of north -wrapped medicine and director of the Lake Integrative Health Center at the Feynberg School of North -Western University in Chicago.
“In just three days, we observed noticeable shifts in bacteria, which, as you know, flourish on simple sugar and contribute to inflammation,” she says.
The preparation of juice increased inflammation in the microbioma of the oral cavity
To study how juices affect the intestines and microbioms of the oral cavity, researchers recruited people aged 18 to 35 years from BMI from 18.5 to 30 years. People were excluded if they had a condition or took medications that could affect systemic inflammation, blood sugar, or microbioma.
In total, 23 people were included, and 14 people (7 women and 7 men) were included in the last analysis of microbiomas. The participants were placed in one of the three groups:
- Only cold squeezing juice
- Cold push -up juice with whole food
- Only for plant products, no juice
Scientists have collected saliva, cheeks and samples of stools before, during and two weeks after three -day intervention in the diet to analyze bacterial changes using genes sequencing methods.
Key conclusions included:
- The group only has shown the most significant increase in bacteria associated with the inflammation and permeability of the intestine.
- A group of all vegetable foods had favorable microbial changes.
- The group-plus-food group had some bacterial shifts, but they were less severe than the group only for juice.
“Most people think about the preparation of juice as a healthy cleaning, but this study offers a test of reality,” says the ring.
The preparation of juice increased the “bad” bacteria in the mouth
The preparation of juice mainly influenced the composition of the oral microbioma – “good” and “bad” microbes in the mouth. Assessing the oral cavity by microbia, scientists have discovered a decrease in useful Firmicutes bacteria and increase ProtebacteriaBacterial group associated with inflammation.
“The oral microbia is the first line of the microbial effect of the body, playing a decisive role in the destruction of food and interaction with the immune system. Changes in the microbiome of the oral cavity can have cascading effects throughout the body, ”says Dr. Ring.
According to her, harmful bacteria in the mouth can go to the gut, contributing to imbalance and inflammation.
“Studies show that the poor health of the oral cavity is associated with systemic diseases, including heart disease, diabetes and inflammatory intestinal diseases. The connection between the oral and intestinal microbiomas suggests that maintaining the health of the oral cavity is an integral part of the general digestive and systemic health, ”says the ring.
Short -term juices are unlikely to harm health
Despite the fact that the fiber supports healthy microbias, three days of cooking are unlikely to damage overall health, says Jacqueline Daniel, RD, dietary feeder in Banner Sports Medicine Center in Scottsdele, Arizona.
According to Freyer, in some situations there may even be useful cooking.
“For example, a temporary diet made of fresh juice can be beneficial for a clash with stool, autoimmune disorders or skin diseases that require large pains [single doses] vitamins and minerals. Or the one who has just completed chemotherapy and has no appetite and considers it difficult to eat enough nutrients that can provide juices, ”she says.
According to Freyer, the intervention in the study is too short to make any generalizations of long-term health effects.
Why does fiber matter?
The absence of fiber in the diet of juice can lead to destruction, the authors wrote.
The preparation of juice removes most of the fiber in whole fruits and vegetables that feed beneficial bacteria that produce anti -inflammatory compounds, such as butyrate.
Without fiber, bacteria for sugar can multiply. According to the authors, the high sugar content in the juice can fuel harmful bacteria.
Juice cleans with caution
“I advise patients to approach the cleaning of juice with caution, especially if they are extended or frequent,” says the ring.
While accidental preparation of juice can complement the consumption of fruits and vegetables, the absence of fiber in cleaning “only juice” can lead to an imbalance in a microbioma and promote inflammation, she says.
“Instead of cleaning the juice, I recommend a diet with whole products rich in fiber, or if you enjoy cooking juice, think about mixing, not cooking to save fiber. For those who are looking for “cleansing” advantages, focusing on whole fiber-rich fiber products, moisturizing and minimizing added sugars can be more effective and stable, ”she will say.
If weight loss is a goal, then juices are unlikely to help, says Alissa Kwan, RD, from Stanford healthcare in California. “The weight“ lost ”is just the weight of water that can be easily obtained,” she says.
“I usually do not recommend the preparation of juice, since this is not“ detoxification ”of the body; Only the liver can do this. Not only did Juice have fiber, but there are not enough calories and protein that are important for the development of muscles, ”says the Quvan.