Apple tree: benefits, dosage, contraindications

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The apple tree is one of the oldest fruit trees cultivated by humans, recognized both for its delicious fruits and its numerous medicinal properties. The apple tree belongs to the Rosaceae family and is characterized by white or pink flowers that give rise to the fruits we know well: apples. These fruits contain polyphenols, ursolic acid, and pectin, compounds beneficial to health. The apple peel is particularly rich in polyphenols, more so than the flesh, and the types and levels of these polyphenols vary depending on the cultivar and the degree of processing of the fruit. Historically, the earliest medicinal uses of apples date back to Antiquity, when they were used for their anti-inflammatory and antibacterial properties. The term "pomade" comes from the use of apples to create balms mixed with olive oil. In gemmotherapy, it is primarily the apple tree buds that are used for their therapeutic effects. They are reputed to stimulate cerebral circulation and brain oxygenation, strengthening cognitive functions. In sexual terms, apple bud extracts are used to regulate hormone secretion in men and women, helping to treat conditions such as asthenia and frigidity. Although apples are commonly consumed for their nutritional value, current research is exploring their potential in treating various conditions such as Alzheimer’s disease, diabetes, and obesity, although the scientific evidence remains insufficient to support these uses.

Scientific name(s)

Malus Communis

Family or group: 

Plants

Active ingredients:

Pectin

Ursolic acid


Indications

Scoring methodology

EFSA approval.

Several randomized, double-blind, controlled clinical trials (> 2), including a significant number of patients (>100), with consistently positive conclusions for the indication.
Several randomized, double-blind, controlled clinical trials (> 2), including a significant number of patients (>100), with positive conclusions for the indication.
One or more randomized studies, or several cohorts or epidemiological studies, with positive conclusions for the indication.
Clinical studies exist but are uncontrolled, with conclusions that may be positive or conflicting.
No clinical studies to date that can demonstrate the indication.


Cognitive decline
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In gemmotherapy, the apple tree is used to support cognitive functions. However, a clinical study shows that consuming apple juice does not improve cognitive function in patients with Alzheimer’s disease, although it may improve mood and behavior according to caregiver assessments.

Posologie

posologieOrally: buds, fruit

formulationgemmotherapy


Hypercholesterolemia
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Consumption of dried apples has been shown to lower cholesterol in postmenopausal adults, attributed to the pectin in apples which increases intestinal viscosity, reducing cholesterol reabsorption and stimulating bile production.

Posologie

posologieOrally: buds, fruit

formulationgemmotherapy


Muscle strength
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Clinical studies in resistance-trained men show that an apple extract modestly increases lower-body strength and power, as well as muscle cross-sectional area, compared to a placebo.

Posologie

posologieBy mouth: fruit


Sexual disorders
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In gemmotherapy, the apple tree is valued for its effects on cerebral circulation and hormonal regulation, which can positively influence sexual functions by improving hormone secretion.

Posologie

posologieBy mouth: buds

formulationgemmotherapy


Properties


Cardiovascular

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Apples, particularly their skin rich in polyphenols, may help improve cardiovascular function. Polyphenols, such as flavonoids and tannins, are known for their antioxidant and anti-inflammatory properties, which can reduce cardiovascular risk. nnA small clinical study in healthy subjects showed that daily consumption of two apples with their skin improved endothelial function, assessed by flow-mediated dilation, immediately and after four weeks, compared with peeled apples. nn


Hypocholesterolemic

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The effect of apples on cholesterol varies depending on how they are consumed. Consumption of dried apples has been shown to lower cholesterol in postmenopausal women, likely due to the pectin present in apple fiber. This pectin increases intestinal viscosity, thereby reducing cholesterol reabsorption.nn

Usages associés

Hypercholesterolemia

Musculoskeletal effects

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Ursolic acid, a triterpenoid present in apple skin, may influence muscle mass. Animal studies indicate an increase in muscle mass, exercise capacity, and grip strength following administration of ursolic acid. nnIn humans, results are less clear, although a blend containing an apple extract has shown an increase in ATP in plasma and muscles.nn

Usages associés

Muscle strength

Metabolic

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Ursolic acid in apple skin may improve metabolism. Animal research shows that ursolic acid increases the amount of brown fat, which raises energy expenditure and improves glucose tolerance while reducing weight. In humans, results vary: consuming whole apples increases satiety and slows gastric emptying compared with apple juice, suggesting positive effects on metabolism and weight management.


Safe dosage

Adult: 40 drops (gemmotherapy)

Gemmotherapy: the dosage is 40 to 100 drops per day in a 2- to 3-month course. There is no established dosage for other formulations.


Interactions

Médicaments

Organic anion-transporting polypeptide (OATP): strong interaction

Apple juice consumption inhibits OATP, which reduces the bioavailability of oral medications that are OATP substrates, such as fexofenadine, atenolol, and aliskiren. nnClinical studies have shown that co-administration of apple juice decreases the bioavailability of fexofenadine by up to 78%, of aliskiren by up to 63%, and of atenolol by up to 82%. nnIt is recommended to separate medication intake and apple juice consumption by at least 4 hours to avoid this interaction.