M.D.
In a month you can lose between 2.2% and 4.9% of your baseline weight according to a study by Anton et al, 2019 and a study by Eshghinia and Gapparov, 2011. For example with an initial body weight of 180 pounds, 2.2 % weight loss is 4 pounds and 4.9 % weight loss is 8.8 pounds in a month.
Combining moderate intensity exercise three times per week with intermittent alternate day fasting can double the weight loss achieved with intermittent fasting alone. During a 12-week intermittent fasting obese patients lost 6.6 pounds while patients who also participated in the moderate intensity exercise program three times per week lost 13.2 pounds in the same period as has been shown by a study by Bhutani et al, 2013.
Prolonged very low calorie diets can cause physiological changes that can lead to the body becoming accustomed to calorie restriction, preventing further weight loss. Intermittent fasting on a 16:8 rhythm tries to solve this problem by alternating between a 16-hour meal break and 8 hours of normal eating, which can prevent these adaptations.
Intermittent fasting is only eating during a certain period of time. For example, only eating every other day or only for five days a week. The best-known form of intermittent fasting is to simply skip breakfast and eat only in an eight-hour time window, e.g. between noon and 8 p.m., in the so-called 16 : 8 rhythm. What speaks in favour of this form of fasting is that relatively few changes to the existing eating behaviour are necessary, because one only has to leave out breakfast and not eat anything after 8 pm in the evening.
The best hours for intermittent fasting are from morning until after lunch. Depending on what time you have breakfast either from 7:00 to 15:00 or from 8:00 to 16:00. The meal time window early in the day allows for enough distance to bedtime in the evening. Sleep is better when there are at least three hours between dinner and bed.
In the case of intermittent fasting the best meal to skip is dinner. Fasting in the evening and overnight is the best way of intermittent fasting to lose weight. Eating in the morning, when your mental and physical demands are highest, gives you the energy you need to perform at your best. Studies show that people who eat breakfast do better on cognitive and memory tests than those who skip it. The brain operates better when it is supplied with energy than in a fasting state.
Eating nothing for 16 hours causes the metabolism to go into a short fast. The human body switches on a process called autophagy after 14 to 16 hours without food. In this process, the body seeks the energy it needs from its own damaged proteins or cell organelles, which it smuggles inside autophagosomes. Autophagosomes are vesicles with a double membrane that enclose proteins, lipids, membrane components and whole organelles (mitochondria) from the cell plasma inside them. The autophagosomes then fuse with lysosomes to form autophagolysosomes, where the particles are degraded by acid hydrolases and their basic building blocks are made available for recycling.
Fasting alters the gut microbiome. Intermittent fasting can alter the composition of the human gut microbiome by increasing taxonomic diversity. Fasting alters the gut microbiome reducing blood pressure and body weight in metabolic syndrome patients.
The microbiome is the community of all microbes, such as bacteria, fungi, viruses, and their genes, that naturally live on our bodies and inside us. The microbiome consists of trillions of microorganisms (also called microbiota or microbes) of thousands of different species. In a healthy person, these microorganisms coexist peacefully, with the largest numbers found in the small and large intestines. The microorganisms living on and in us contribute in big ways to our health and well being.
Intermittent fasting can induce distinct microbiome changes impacting anaerobic gut bacteria that produce short-chain fatty acids through saccharolytic fermentation of complex resistant carbohydrates (e.g., fructo-oligosaccharides, sugar alcohols, resistant starch, inulin, and polysaccharides from plant cell walls), which escape digestion and absorption in the small intestine.
Short-chain fatty acids are fatty acids of two to six carbon atoms with the highest levels found in the proximal colon. Short-chain fatty acids have diverse physiological roles in body functions. They can affect appetite and cardiometabolic health. Additionally they may have an impact on mental health and mood.
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There are many Greek islands that invite you to go hiking. The most popular are the Cyclades. The sacred island of Delos, the legendary birthplace of Artemis and her brother Apollo, was one of the most important places of worship in Greece in ancient times. The islands lying around it in a circle were called Cyclades, „enclosing islands“. The Cyclades are a group of about 30 islands located in the southern Aegean Sea.
The Aegean Sea is the northeastern part of the Mediterranean Sea, bounded by mainland Greece to the west and north and by Turkey to the east. The Aegean islands acted as a bridge connecting Europe with Asia.
The islands of the Cyclades are the peaks of mountain ranges that were submerged about three million years ago after the subduction of the African plate under the Eurasian plate caused the initially single island of the Cyclades Massif to break apart and subsequently being flooded.
In the period around 5000 BC to 1600 BC, the Cyclades were the center of a Bronze Age society, the Cycladic culture. Akrotiri one of the most important sites in the Aegean was a Cycladic Bronze Age settlement that was covered by volcanic ash in the 17th century BC following one of the largest volcanic eruptions on Earth in human history.
Over time, the Cyclades came under the rule of virtually all the powers in the region, including the Crusaders, who ceded the islands to the Republic of Venice in 1204. The Venetians founded the Duchy of the Aegean Sea with Naxos as the capital. In the capital Chora they built a fortified castle with circuit towers using materials from the ancient city.
While hiking in the Cyclades, you can explore several islands at once, such as Santorini, Naxos and Paros.
Santorini is the southernmost island of the Cyclades with Firá it’s capital. Geologically, Santorini is the remaining eastern half of an exploded volcano. Its bow-shaped rim and the remnant isles of Thirasía and Aspronísi form the edge of an open lagoon, a caldera flooded by the sea with volcanic cliffs rising to almost a 1,000 feet (300 metres). The cliffs of Santorini face west. To the east, the terrain slopes gently down to sea level with beautiful beaches for swimming in the sea, such as Kamari and Perissa. On top of the cliffs there is a walk from Firá to Oía a coastal town on the northwestern tip of Santorini.
Naxos, the largest island of the Cyclades, is located approximately in the middle of the Aegean Sea, south of Mykonos and east of Paros. The relief of Naxos is mountainous. The island is crossed south of the center by a north-south running mountain range, whose highest peak is Mount Zas (1,003 m). The eastern slopes of the range are steep, while the western slopes slope gently down to an area of farmland, where the plain of Plaka extends to the south and the plain of Livadi to the north, at the northwestern end of which and on the beach is the town of Naxos (Chora).
The highland valley in the center of the island of Naxos is called Tragaia or more commonly Tragea. The Tragea plateau is surrounded by the mountains “Koronos” and “Fanari” in the north, as well as mount “Zas” in the southeast. The region of Tragaia is the principal olive cultivation area of the Cyclades that is also known as the “Byzantine Mystras” since most of the churches of Naxos are built there of which you come along on a walk from Chalki to Moni. Chalki used to be the capital of the island and Moni at an altitude of 500 m rewards the visitor with great views of the central Tragea plateau.
Paros the third largest and one of the most popular island of the Cyclades lies west of Naxos, from which it is separated by a channel about 8 kilometres (5 miles) wide. The island is of a round, plump-pear shape, formed by rolling hills and in the center with a single mountain, Agioi Pantes, (724 m (2,375 ft)) that slopes evenly down on all sides to a maritime plain with flat coastal areas and easily accessible beaches considered to be some of the best in the Cyclades which invite you to take coastal walks.
Historically, Paros was known for its fine white marble. Some of the masterpieces of ancient Greek sculpture were made with this pure white, translucent material. For example the statue of Venus de Milo representing the Greek goddess of love and beauty, Aphrodite ( Venus to the Romans) that is on display in the Louvre Museum in Paris.
Paros nearest neighbor is the smaller sister island of Antiparos, which lies to its southwest. The channel between the two islands is less than 2 km (1 mi) wide.
The capital of Paros, Parikia, is situated on a bay on the north-west side of the island. Above the central stretch of the seafront road, there is a picturesque neighborhood named “kastro” with remains of a tower that used to be part of the medieval castle, that was built by the Venetians in 1260, when Paros belonged to the Duchy of Naxos. Almost the entire Venetian tower was built with marble remains of an ancient temple dedicated to Apollo.
On day 1 there is the arrival in Santorini to Hotel Santellini in Kamari which is on the east side of the Island south of the airport.
Upon arrival, you can enjoy the beach at Kamari or take your first hike up Mésa Vounó, the rugged, rocky 354-metre mountain rising steeply from sea level that borders Kamari to the south.
In the evening we gather for the first time.
After breakfast together we take the bus to Firá, the capital of Santorini which lies on the edge of the volcanic cliffs. From Firá we walk along the crater rim to Oía on the northwestern tip of Santorini where we have a typical greek dish for example Moussaka in a nice tavern before we head back to Kamari by bus.
As you can see on the map, we initially climb from an altitude of about 200 m above sea level to an altitude of about 350 m at the village of Imerovigli. Then we go downhill twice and uphill again before we finally descend after about 10 km to an altitude of about 55 m in Oía.
We will take about half a day for this beautiful, panoramic hike. You can move along the route with the curser in the inset.
After breakfast together we are transferred to the ferry port of Athinios on the west side of Santorini island. There we have a chance to view the steep rising cliffs of the island from below. The seajets ferry to Naxos departs at 12:00. After a short journey through the south aegean sea we arrive in Naxos at 13:20. There we move into our Hotel Chateau Zivgoli, which is situated in the labyrinths of the old town that rise from the harbor all the way up the Castro hill.
After dining together in a typical greek tavern you can explore the old town of Chora, the capital of Naxos that is full of narrow stone paths where you could get lost.
On day 4 after breakfast together we take the bus to Filoti from where we hike up mount Zas which is with about 1000 m the highest mountain of the Cyclades. Zas, the chief deity in ancient Greek religion was a sky and weather god who was called the father of both gods and men. Zas was regarded as the sender of thunder and lightning and his traditional weapon was the thunderbolt. Zas grew up on Naxos and gave his name to the highest mountain on Naxos.
As you can see on the map, we initially climb from an altitude of about 370 m above sea level in Filoti to an altitude of about 1000 m at the peak of Mount Zas. After the descent we reach Filoti again. The total length of this hike is about 10 km. We will plan all day for this tour that offers a view over the Cycladic islands. You can move along the route with the curser in the inset.
Before returning to Chora on day 4 we have a traditional meal together, i.e. lamb in lemon sauce in a greek tavern, i.e. Ambrosía in Filoti.
On day 5 after breakfast together we take the bus from Chora to Chalki from where we do a circular walk in the Tragea plateau to Moni and back to Chalki. The highland valley in the center of the island of Naxos is called Tragaia or more commonly Tragea. The region of Tragea is the principal olive cultivation area of the Cyclades.
Also most of the churches of Naxos are built on the Tragea plateau the oldest probably being a church (circa 6th century) in Halki at the bus stop. You come along the churches of the Tragea plateau on a circular walk from Halki to Moni and back. Halki used to be the capital of the island and Moni at an altitude of 500 m rewards the visitor with great views of the central Tragea plateau.
We take all morning for this circular 7,4 km walk on the Tragea plateau from a height of about 270 m in Halki to about 450 m in Moni. You can move along the route with the curser in the inset of the map.
However, before returning to Chora by bus, we have a meal together in a tavern in Halki where we can eat for dessert, for example, Galaktomboureko, a semolina pudding baked in very thin layers of dough.
On day 6 after breakfast together at 9:30 we take the ferry from Naxos to Parikia the capital of the neighbouring island of Paros. Since Paros is very close to Naxos the ferry ride only takes 45 minutes. From Parikia we take the bus to Alyki in the south of the island. After a meal in a typical Greek taverna, we set off on a leisurely walk along the south-west coast of Paros, where there are sandy beaches inviting you to swim in the dark blue waters of the Aegean Sea.
Antiparos is a volcanic rock 1.5 km southwest of Paros. The port and historical center of the main settlement lies at the northeastern tip of Antiparos, opposite Pounta.
This walk from Alyki to Pounta along the beaches of Makrya Myti, Voutakos and Pounta offers great views of Alyki bay, Antiparos and the little islets in the Strait of Antiparos.
The distance of this comfortable walk is 8 km, the elevation 25 m. You can move along the route with the curser in the inset of the map.
On day 7 after breakfast together we visit Antiparos the smaller sister island of Paros for a walk along it’s north Coast.
The northern coast of Antiparos offers a scenic view of Paros across the Strait of Antiparos. Our trail follows the waterline on rugged ground and sanded beaches.
Distance 5 km, elevation 17 m. You can move along the route with the curser in the inset of the map.
There is a typical Greek taverna meal together in Antiparos town at the end of the walk with for example a variety of appetizers including calamari fried, traditional Greek salad, chicken souvlaki, fried zucchini chips, fried zucchini balls and tzatziki.
1 week of intermittent fasting walks on Santorini, Naxos and Paros with a medical doctor and an artist
Medical consultation at the beginning and end of the week
Medical care the whole week
Daily morning lectures on Intermittent Fasting before breakfast together
7 nights in 3* hotels with breakfast
6 typical traditional full greek taverna meals
Ferry crossing from Santorini to Naxos on the first high-speed seajets vessel of the day
Ferry crossing from Naxos to Paros with Blue Star Ferries
Transfer from the airport or ferry port to the hotel in Santorini on arrival
Transfer from the hotel in Santorini to the ferry port
All bus transfers to the walks and hikes
Transfer to the airport or ferry port in Paros on departure
Arrival details
You will be picked up upon arrival at the airport or ferry port in Santorini and brought to the hotel.
Departure details
You will be transferred to the airport or ferry port in Paros on departure.
Price per person double room occupancy: € 2.490,00
The cancellation conditions are:
Up to 60 days before day 1 of travel 10% of the price
59th to 27th day before day 1 of travel 30% of the price
28th to 15th day before day 1 of travel 50% of the price
14th to 6th day before day 1 of travel 75% of the price
5th to 1st day before day 1 of travel 90% of the price
No-show 100% of the price
If you have questions about Intermittent Fasting Hiking with Dr. Schlappack on Greek Islands just call +43 680 301 7720. All calls go straight to Dr. Schlappack.