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14 Foods and Herbs That Are Good for Diabetes:
Scientific Findings, Ancient Knowledge, and Everyday Use
When discussing foods that are good for diabetes, only
A list of names is not enough.
How does each component work?
What has been researched in humans?
What is its traditional usage?
How can it be incorporated into the daily diet?
in this guide modern scientific research
and passed down through different medical traditions over the centuries
ancient knowledge We bring them together.
First, the basic points about type 2 diabetes and insulin resistance,
Then, 14 natural options ranging from barber's milk to turmeric.
We are addressing them separately.
Type 2 Diabetes
• Insulin Resistance
• 14 Natural Options
• Scientific Research
• Ancient Knowledge
• Daily Use
with their contents, usage patterns and researched effects
They need to be evaluated together.
Professional Support Regarding Diabetes
Your questions about diabetes, in daily life
the issues you're struggling with and the professional you need
You can contact Pearl Therapy for support.
Our comprehensive support service for diabetes
or a combination of scientific knowledge and ancient knowledge.
Our Ancient Healing Consultancy service was evaluated.
You can examine it in detail.
7 Important Facts About Diabetes
1. The presence of insulin alone is not sufficient.
In type 2 diabetes, the response of cells to insulin may be reduced.
The pancreas initially does this by producing more insulin.
He tries to meet them.
Blood sugar control as the process progresses.
It may get more difficult.
2. The Increase in Diabetes Incidence is Noteworthy.
Comparison of TURDEP research in Türkiye,
During the approximately 12-year period between 1997–1998 and 2010
It has revealed a large increase in the incidence of diabetes.
In this historical comparison, approximately
90% increase It has been reported.
3. To Reduce Processed and Added Sugar
Make a Clear Start.
Sugar added to tea, sugary drinks,
reducing ready-made desserts and sugary snacks
It is an important step in daily nutrition.
By setting a 21-day period, you can control your sweet cravings.
daily energy, dietary habits and
Changes in blood sugar measurements can be observed.
4. Instantaneous HbA1c measurement does not provide the same information.
A single blood sugar measurement shows the current value.
HbA1c is approximately the average of the last 2-3 months.
It provides information about blood sugar levels.
Two people with the same average during the day
Their rises and falls can be different from each other.
5. Low Blood Sugar is Also Important
A severe drop in sugar can affect thinking,
It can affect attention and consciousness.
Therefore, not only high values,
Sudden and significant drops during the day should also be monitored.
6. Natural Sugar vs. Processed Sugar in Foods
They are not of the same structure.
Whole fruit, fruit juice, and sugary drinks.
They would not be consumed in the same way.
Fiber, portion size, food composition, and total carbohydrates.
The amount affects the blood sugar response.
7. Protecting Your Kidneys is Important
Prolonged high blood sugar levels,
It can affect the small blood vessels in the kidneys.
Therefore, diabetes is not just about that day.
It is not a matter limited to blood sugar measurement.
Let's understand insulin resistance using the analogy of a house and a fireplace.
Your body is big ev,
glucose provides energy wood,
and cells that can use this fuel
fireplaces Think of it like this.
Glucose = Fuel
Glucose is an important source of energy that the body can use.
It is one of the sources.
Cell = Fireplace
Having firewood in the house is not enough.
It needs to reach the right place to generate heat.
Insulin = The System That Initiates the Message
Insulin regulates glucose usage in cells.
It starts the message.
Intracellular Signaling = The System That Carries the Message
Proteins such as IRS, PI3K, and Akt
It plays a role in this communication chain.
Liver = Storage and Production Center
The liver can store glucose and
can donate blood if needed.
Muscles = Important Area of Use
The muscles take up and use glucose.
It plays an important role in blood sugar balance.
Modern Scientific Data and Ancient Knowledge
Why are we offering them together?
In Pearl Therapy's Helpful Information approach
We are not looking at the subject from the perspective of only one intellectual tradition.
Scientific Research
Human studies, randomized trials,
systematic reviews and meta-analyses;
such as blood sugar, HbA1c and insulin response
It evaluates measurable indicators.
Ancient and Traditional Knowledge
Ayurveda, Islamic/Greek medicine,
Such as Prophetic Medicine and Traditional Chinese Medicine
systems throughout plant history
It describes the ways in which it is used.
The same plant can produce different products.
Spices added to the food,
strained herbal tea,
plant oil and standardized extract
It does not contain the same amount of active ingredient.
Research on Blood Sugar
14 Foods, Plants and Natural Ingredients
1. Berberin / Berberis
Berberine · An important alkaloid in Berberis species
Berberis is the name of the plant, and berberine is a substance found in the plant.
It is the name of one of the key active ingredients.
How can it affect blood sugar?
One of the mechanisms that stood out in the barber's research
AMPK It is a cellular energy regulator.
Increased AMPK activity in experimental studies,
glucose transport in muscle cells and
This has been observed in conjunction with improvements in glucose utilization.
It also regulates glucose production in the liver.
Effects on metabolic pathways are also being investigated.
🔬 Human Research + Experimental Mechanism
Scientific Findings
2024 meta-analysis,
50 randomized studies and 4.150 participants
He evaluated.
In barbershop use, during fasting and after meals.
Decreases in glucose levels have been reported.
In a small pilot study conducted previously,
in the berberine and metformin groups
Glucose levels showed improvement.
·
Berberine – Metformin Pilot Study
·
Ancient and Traditional Use
Berberis species in Ayurveda,
Such as Persian/Greek and Traditional Chinese Medicine
It has been used in different traditions for centuries.
In Ayurveda
Berberis aristata
Daruharidra
It is known by this name.
Daily use
the market
Berberine HCl 500 mg
Standardized capsules in this form are available.
Use after breakfast.
according to the usage pattern of the product used
preferable.
etiquette
"Berberine HCl 500 mg"
by writing
"Berberis Extract 500 mg"
Writing it is not the same thing.
2. Gurmar
sylvestre gymnema
How can it affect blood sugar?
Gurmar's leaf components contain gymnemic acids,
Research has been conducted on the passage of glucose from the intestine.
In experimental studies, some preparations
It has been shown to reduce glucose absorption.
Another notable feature of Gurmar is...
in the mouth temporarily affects the perception of sweet taste
It is the ability to reduce it.
🔬 10 Workshops · 419 Participants
Scientific Findings
In the 2021 meta-analysis, fasting glucose,
postprandial glucose and HbA1c values
Declines compared to the beginning have been reported.
·
Its Place in Ayurveda
Gurmar in the Ayurvedic tradition
It is one of the important plants associated with diabetes.
Its name is commonly
"sugar destroyer / sugar crusher"
It is explained by its meaning.
Daily use
Gurmar preparations,
from a meal containing carbohydrates
before to be used
It can be planned.
Use time of the product
It can vary depending on the form of the leaf, extract, or capsule.
3. Ceylon Cinnamon
Cinnamomum verum / Cinnamomum zeylanicum
How can it affect blood sugar?
Ceylon cinnamon;
involved in the breakdown of carbohydrates
alpha-amylase and alpha-glucosidase
Research has been conducted on enzymes.
A decrease in the effectiveness of these enzymes,
the breakdown of carbohydrates and glucose
It can affect the rate at which it enters the bloodstream.
In human studies, insulin resistance and
Pancreatic beta cell function was also evaluated.
🔬 210 People with Type 2 Diabetes
Scientific Findings
In a randomized double-blind study published in 2025
In groups using Ceylon cinnamon extract
fasting glucose and HbA1c values
Improvements have been reported.
Ancient Use
Cinnamon bark,
in the kitchen since very ancient times
It has been used in both traditional herbal practices.
Ideas for Everyday Use
- Unsweetened black tea
1 stick of Ceylon cinnamon
can be added. - Approximately 1,5 liters of water
One stick can be added and consumed throughout the day. - If dessert is consumed, then on top of it
Powdered Ceylon cinnamon can be added. - It can be sprinkled over yogurt and fruit.
4. Black Cumin Seeds
Nigella sativa
How can it affect blood sugar?
In black cumin research
glucose regulation
oxidative stress and antioxidant defense
They are examined together.
🔬 Meta-Analysis of 30 Randomized Studies
Scientific Findings
In the 2024 meta-analysis
fasting blood sugar and HbA1c
Significant declines have been reported.
Its Place in Prophetic Medicine
Black cumin in Islamic healing tradition
It is one of the natural foods that holds a special place.
Ideas for Everyday Use
- The seeds can be added to salads.
- It can be consumed with cheese and yogurt.
- It can be added to meals and bread.
- Black cumin seed oil suitable for food use.
It can be used in salads and cold dishes.
5. Fenugreek Seeds
Trigonella foenum-graecum
How can it affect blood sugar?
One of the important characteristics of fenugreek seeds
It is a soluble fiber content.
These fibers create a thickening agent in the digestive system.
It can affect the rate of digestion and absorption of carbohydrates.
🔬 10 Randomized Studies · 706 Participants
Scientific Findings
In the 2023 meta-analysis, fasting glucose,
two-hour glucose and HbA1c
Significant decreases were found.
Traditional Use
Fenugreek seeds are Indian.
In Middle Eastern and Anatolian cuisines
It is one of the traditional herbs that has been used for a long time.
Ideas for Everyday Use
- The tea can be prepared.
- While black tea is brewing
It can be added to the mixture. - Ground or suitably prepared
The seeds can be added to salads. - It can be used as a spice in cooking.
6. Olive Leaf
Olea europaea
How can it affect blood sugar?
On the olive leaf
oleuropein and hydroxytyrosol
such as polyphenols in metabolism research
stands out.
In human studies
insulin sensitivity and pancreas
Insulin response was evaluated.
🔬 Clinical Research in Type 2 Diabetes
Scientific Findings
A study was conducted with 79 people with type 2 diabetes.
In a 14-week study,
in the olive leaf extract group
HbA1c and fasting insulin compared to placebo.
It was found to be lower.
Traditional Use
Olive leaf, Mediterranean and European
in traditional herbal practices
It is one of the leaves that has been used for a long time.
The Idea of Daily Use
Dried olive leaves,
when brewing black tea or herbal tea
It can be added to the mixture.
7. Thyme
Thymus species
How can it affect blood sugar?
In experimental research conducted with specific thyme species
liver glucose production,
glucose transporters,
AMPK and inflammation-related mechanisms have been investigated.
🔬 Experimental Research
Scientific Findings
Extracts of some thyme species
in experimental type 2 diabetes models
on glucose metabolism
It has been associated with positive outcomes.
Research Species Specific to Thyme
·
Traditional Use in Anatolia
Thyme is used in Anatolian cuisine and folk herbalism.
It is one of the most widely used aromatic plants.
Ideas for Everyday Use
- It can be added to meat dishes.
- It can be used in chicken, vegetable, and legume dishes.
- It can be added to herbal tea blends.
8. Apple Cider Vinegar
Apple cider vinegar
How can it affect blood sugar?
The acetic acid contained in vinegar,
postprandial glucose response and
Research has been conducted on the effect of glucose uptake by muscles.
🔬 Human Studies + Meta-Analysis
Scientific Findings
Seven controlled studies in the 2025 meta-analysis
They were evaluated together.
In the use of apple cider vinegar
fasting blood glucose and HbA1c
Declines were reported.
Traditional Use
Vinegar has been a part of traditional nutrition and
In Islamic dietary culture
used since very ancient times
It is one of the fermented foods.
Ideas for Everyday Use
- It can be added to salad dressings.
- It can be added to soups that suit its taste.
- It can be used to add a natural sourness to dishes.
9. Garlic
Allium sativum
How can it affect blood sugar?
The sulfur components of garlic,
oxidative stress and insulin resistance
Related metabolic pathways are being investigated.
🔬 9 Randomized Studies · 768 People
Scientific Findings
In the 2017 meta-analysis
with garlic preparations
decrease in fasting glucose,
In some follow-up periods, HbA1c...
Improvement has been reported.
Ancient Use
The use of garlic for health purposes.
It dates back to ancient Egyptian, Greek, and Indian sources.
Ideas for Everyday Use
- It can be added to dishes.
- It can be used in salads.
- It can be consumed with plain yogurt at dinner.
- It can be added to tzatziki and yogurt-based sauces.
10. Astragalus
Astragalus membranaceus
How can it affect blood sugar?
In experiments with astragalus polysaccharides
AMPK is responsible for glucose uptake by muscle cells.
glycogen storage and
Insulin signaling pathways have been investigated.
🔬 13 Workshops · 1.054 Participants
Scientific Findings
In the 2016 meta-analysis
In the adjunctive use of astragalus preparations
fasting and post-meal glucose levels
Declines were reported.
Traditional Chinese Medicine
Astragalus root
Huang Qi
in Traditional Chinese Medicine under that name
It has been in use for a long time.
Daily use
Type defined in use,
prepared for food or herbal tea purposes
Astragalus root is preferred.
Root pieces can be used in herbal tea or...
It can be added to boiling mixtures.
11. Mulberry Leaf
Morus alba
How can it affect blood sugar?
On the mulberry leaf
1-deoxynojirimicin (DNJ),
in carbohydrate digestion
can affect the alpha-glucosidase enzyme
It is one of the components.
Therefore, mulberry leaves are especially important.
post-meal glucose spike
It has been investigated from this perspective.
🔬 Human Studies
Scientific Findings
In controlled studies
with some mulberry leaf extracts
in post-meal glucose spike
A decrease has been reported.
·
Traditional Use
Mulberry leaf,
Traditional East Asian herbal remedies
It has been used in applications for a long time.
Ideas for Everyday Use
- Dried tea leaves can be added while brewing.
- Suitable young leaves can be used for cooking or making stuffed dishes.
- Leaves prepared for food use.
It can be used in salads or meals.
12.Aloe Vera
Aloe vera
How can it affect blood sugar?
In aloe vera research
certain gel preparations and
Some phytosterols in the plant have been studied.
🔬 8 Workshops · 470 Participants
Scientific Findings
In the 2016 meta-analysis,
In the type 2 diabetes group
Significantly on HbA1c,
It is more limited in fasting glucose.
Improvement has been reported.
Ancient Use
Aloe, from ancient Greek...
In Roman, Chinese and different traditions
It is one of the oldest plants used.
Daily use
Prepared as food
inner leaf aloe vera gel
It can be mixed with water.
Product prepared for food purposes,
spread on suitable foods
can also be used.
13. Ginger
Zingiber officinale
How can it affect blood sugar?
The gingerol components of ginger,
glucose uptake in muscle cells,
Mechanisms such as AMPK and GLUT4
It has been researched through this method.
🔬 Meta-Analysis of 10 Studies
Scientific Findings
In the 2022 meta-analysis
Fasting blood sugar with ginger support
and decreases in HbA1c were reported.
Traditional Use
Ginger,
In Ayurveda and Asian traditional medicine systems
It has been used since very ancient times.
Ideas for Everyday Use
- Fresh ginger can be added to herbal tea.
- It can be added to soups.
- It can be used in meat and vegetable dishes.
- Ground ginger can be added to dishes as a spice.
14. Turmeric / Curcumin
Curcuma longa
How can it affect blood sugar?
The curcuminoid components of turmeric,
insulin resistance,
fatty acid metabolism
and inflammation-related mechanisms
It is being researched.
🔬 Meta-Analysis of 34 Randomized Studies from 2026
Scientific Findings
In the 2026 meta-analysis,
in adults with prediabetes or type 2 diabetes
fasting glucose, HbA1c and
indicators of insulin resistance
Improvements have been reported.
Ancient Use
Turmeric,
Especially Ayurveda
In traditional Indian and Asian medicine systems
used since very ancient times
It is one of the basic plants.
Ideas for Everyday Use
- It can be added to vegetable dishes.
- It can be added to soups.
- It can be used in egg and legume dishes.
- It can be added to herbal tea along with ginger.
How are these 14 natural options being researched?
| Food / Plant | The main mechanism investigated. | Key Point |
|---|---|---|
| Berberine | AMPK, glucose utilization. | Human studies are strong. |
| Gurmar | Glucose absorption, taste perception | Long history of use in Ayurveda. |
| Ceylon Cinnamon | Digestive enzymes, insulin response | The type of cinnamon matters. |
| Black cumin seeds | Glucose balance, oxidative stress. | 30 RCT meta-analysis |
| Fenugreek | Soluble fiber, absorption rate. | 10 RCT |
| Olive Leaf | Insulin sensitivity | Human clinical trial |
| Thyme | AMPK, inflammation | Human data is more limited. |
| Apple Cider Vinegar | Postprandial glucose response | Human studies are available. |
| Garlic | Oxidative stress and metabolic pathways | 9 RCT meta-analysis |
| Astragalus | AMPK, PI3K/Akt | Clinical data quality is variable. |
| Mulberry Leaf | DNJ, alpha-glucosidase | Post-meal glucose |
| Aloe vera | Gel preparations and phytosterols | The form of preparation is important. |
| Ginger | AMPK, GLUT4 | Meta-analysis of 10 studies |
| Turmeric | Insulin resistance, fat metabolism | 34 RCT meta-analysis |
More Detailed Explanations About Diabetes
Regarding diabetes and type 2 diabetes.
Our detailed explanations are below.
You can access them through the Pearl Therapy video series.
How was this content prepared?
Prepared by: Abdullah Emre İpek – Pearl Therapy Center
This guide;
Type 2 diabetes, insulin resistance, and natural supplements.
in addition to scientific publications
Ayurveda, the Islamic healing tradition,
Traditional Chinese Medicine and various ancient usage records
It was prepared by evaluating them together.
Frequently Asked Questions
Do all 14 of these products work in the same way?
No. Some have carbohydrate digestion and absorption,
insulin response in some
cellular glucose utilization or
Pathways associated with metabolic stress have been investigated.
Is the herbal tea the same as the extract used in the research?
No. The plant part used,
The preparation method and active ingredient concentration may vary.
Are berberis extract and berberine HCl the same?
No. Berberis is a plant.
Berberine refers to a specific component found in the plant.
Does adding cinnamon neutralize the sweetness in dessert?
No. Adding cinnamon,
the amount of sugar or total carbohydrates in the dessert consumed
It does not eliminate it.
Do fenugreek tea and fenugreek seeds have the same effect?
The preparation methods differ.
Strained tea does not provide all the fiber content of the seed.
Ancient knowledge through scientific research
How are they considered together?
Traditional knowledge describes the historical uses of the plant,
Scientific research, however, indicates that certain preparations
It shows measurable effects.
These two information fields are presented together on the page.
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