A very special vegetable that is a miracle for fatty liver + how to use it
Fatty liver has become one of the most common health problems in Iran, and in the meantime, consuming dill is considered as a common home remedy. But does this advice have scientific support?
Fatty liver has become one of the most common health problems in Iran, and in the meantime, consuming dill is considered as a common home remedy. But does this advice have scientific support?
According to Ambassador Arjan's report, citing Delgarom, fatty liver has become one of the most frequent medical diagnoses in Iran. From periodic ultrasounds at work to simple visits to the general practitioner, the term "grade one fatty liver" or "grade two" has almost become a part of people's daily conversation. In the same space, home and traditional recommendations have become bolder, and one of the most frequent ones is the consumption of dill, especially in the form of tea, powder, or adding it to yogurt and salad.
The main question is: Is this advice scientifically supported or is it just an old belief that has been passed down from generation to generation? In this article, we try to see exactly what scientific researches say about dill and liver health, what mechanisms are involved, how to consume it and where to be careful. The goal is that after reading this text, you will have a realistic and practical picture of the role of dill in controlling fatty liver.
What is fatty liver? Accurate knowledge before any treatment advice
Before we talk about the properties of a plant, we must know what kind of situation we are facing. Fatty liver or non-alcoholic fatty liver disease (NAFLD) is a term for a condition in which more than five percent of the liver's weight is fat; That too without alcohol consumption playing a major role. This disease includes a range of mild to severe conditions:
Simple fatty liver (steatosis): Fat accumulates in the liver cells, but there is no serious inflammation.
Nonalcoholic steatohepatitis (NASH): Fat associated with inflammation and damage to liver cells.
Fibrosis: The formation of scar tissue in the liver following chronic inflammation.
Cirrhosis: an advanced stage in which liver function is severely impaired.
What makes fatty liver dangerous is its silence. A person may live for years without any symptoms and only discover the story in periodic tests, the rise of enzymes such as ALT and AST or the observation of a "bright liver" in ultrasound. More important than fat itself are its metabolic consequences: closely related to insulin resistance, type 2 diabetes, high blood pressure, and cardiovascular disease.
From a mechanistic point of view, four main processes are involved in the formation of fatty liver:
1. Insulin resistance: cells do not respond properly to insulin, blood sugar remains high, and the liver converts excess sugar into fat to store energy.
2. Increasing the entry of free fatty acids from adipose tissue, especially abdominal fat, to the liver.
3. Reducing the release of fat from the liver in the form of VLDL lipoproteins. 4. Inflammation and oxidative stress that pave the way for cell damage and fibrosis.
Any substance that claims to help fatty liver must be effective in one of these four points. If an intervention does not work in any of these pathways, it is merely an empty recommendation.
Know the symptoms of fatty liver; The best way to diagnose fatty liver What to eat for fatty liver
dill; A familiar plant with compounds that we know less about
Dill with the scientific name Anethum graveolens is from the Chetrian family; The same family that cumin, fennel, parsley and coriander also belong to. It is native to the Mediterranean region and the Middle East and has had a special place in the cooking and traditional medicine of Iran, Egypt, India and Greece for centuries. What many people don't know is that dill leaves, seeds and oil are completely different in terms of composition and should not be considered the same.
Fresh dill leaves are rich in vitamins A and C, folate, manganese, iron and calcium, and have only 43 kcal of energy per hundred grams. Dill seeds, however, have a much higher concentration of volatile essential oils; Especially carvone and limonene. For this reason, in many scientific studies, the therapeutic effects have been mainly attributed to the extract of the seed or its essential oil, not to the fresh leaf.
The most important bioactive compounds are:
Monoterpenes: carvone, limonene, dil apiol, alpha-flandrene
Flavonoids: quercetin, kaempferol, isoramentin, rutin
Phenolic acids: chlorogenic acid, caffeic acid, ferulic acid
Other ingredients: anthofuran, tocopherols, ascorbic acid
What makes dill scientifically interesting for the liver is the overlap of these compounds with substances that have been independently investigated in clinical studies of fatty liver. Quercetin has been the subject of several meta-analyses in NAFLD, and chlorogenic acid has also been considered in metabolic studies. Therefore, dill can be considered a kind of "mixed package" of several effective molecules, not just a fragrant vegetable.
Properties of dill for fatty liver: what the evidence shows
Most of the available evidence about the effect of dill on the liver comes from laboratory and animal studies. In several studies conducted on rats fed a high-fat diet, the administration of hydroalcoholic or blue dill extract has been associated with the following results:
Significant reduction of stored fat in the liver
Improvement of the tissue condition of the liver in microscopic examination
Increasing the activity of antioxidant enzymes such as superoxide dismutase and catalase
Reduction of malondialdehyde (MDA) as a marker of lipid peroxidation
Another group of studies have investigated the protective effect of dill against liver toxins; including carbon tetrachloride and high-dose acetaminophen. The pattern of results in these studies is almost the same: reducing tissue damage, reducing portal inflammation and inhibiting the formation of free radicals. The proposed mechanism is inhibition of NF-κB inflammatory pathway and reduction of production of pro-inflammatory cytokines such as TNF-α and interleukin-6.
Let's be clear here: the number of clinical trials that have directly examined "wash and fatty liver" is very limited. Most of the available human data have evaluated the effect of dill on lipid profile and blood sugar control in patients with type 2 diabetes. This point is important, because a large part of diabetic patients have fatty liver at the same time, and improving blood sugar and blood lipids is an indirect way to improve the liver.
In these small studies, daily consumption of dill powder or extract for eight to twelve weeks was associated with:
Increased HDL in some studies
Reduction of inflammatory markers such as CRP in some trials
These findings target the biological pathways associated with fatty liver, but do not fill the gap of a dedicated and large study on NAFLD patients. A fair summary is this: dill is a potential treatment aid, not an alternative treatment.
Oxidative stress is the main driving force behind the progression of simple fatty liver to steatohepatitis. Dill flavonoids reduce the oxidative load by neutralizing free radicals and increasing liver glutathione reserves. Quercetin in dill also activates the Nrf2 pathway; A path that prompts the body to produce internal antioxidants.