Surviving in the Wild: Practical Tips

Finding food and water in the wild can be challenging—but with knowledge, calm decision-making, and a practical approach, survival becomes far more realistic.

It is remarkable how long the human body can endure without food while still maintaining performance. Living completely without food (but not without water) is possible without severe risk for up to 16 days. In fact, in certain conditions it is better to avoid eating entirely than to consume only tiny portions of food that do not provide meaningful energy.

However, prolonged fasting—especially combined with lack of water—reduces resistance to cold, decreases pain tolerance, and weakens the body overall.

Preparing for a period without food

When transitioning into a period without nourishment, it is important to keep an emergency reserve of food for a “bad day.”

A basic survival reserve should cover 2–3 days, with at least 500 calories per day.

In general, the first 2–3 days can be endured fairly easily without food, as long as sufficient water is consumed. These first days are often enough time to secure additional food sources from nature through gathering, hunting, or fishing.

Animal-based survival foods

Insects

In some countries, delicacies include locusts, hairless caterpillars, larvae and pupae of beetles, spiders, and termites. There may come a moment where you have no other choice but to eat insects. Many of them contain valuable protein and fats.

Frogs and salamanders

These small amphibians live in many regions with warm waters and mild climates. The best time to catch frogs is at night, when they are actively croaking.

Frogs can be eaten whole, but they should be skinned first and then either roasted over a fire or boiled in water.

Shellfish

Snails, mussels, and other mollusks are invertebrates found in both freshwater and saltwater environments. Many species are edible, but only if they are fresh and properly cooked. Do not eat shellfish raw, as it may cause infection from parasites.

Crustaceans

This group includes sea crabs, river crabs, lobsters, and shrimp. Most are edible, but they spoil quickly and can carry dangerous parasites. River crustaceans must be boiled; sea crustaceans may sometimes be eaten raw, though cooking is safer.

Reptiles

Snakes and lizards may also serve as food in survival conditions. After skinning them and removing the head, the meat can be boiled or roasted over fire.

Plant-based survival foods

Experts estimate that there are about 300,000 plant species on the planet—including those growing in mountains, swamps, and oceans. Around 120,000 of them are edible. In many countries, roughly 2,000 edible plants can be found.

Some plants may be eaten raw, while others require heat treatment (cooking), drying, or soaking in water.

Berries

The most commonly edible plant foods are berries. Many berries can be found in nature, such as bearberry, blueberries, raspberries, lingonberries, and many others. Berries are rich in vitamins and are also highly enjoyable to eat.

Wild greens and practical examples

Many wild plants can replace common greens in daily nutrition. Examples include:

• Dandelion: Leaves and roots can be eaten raw, but taste better when lightly cooked. Dandelion root can also be roasted and ground as a coffee substitute.
• Marsh marigold: Grows in wetlands and along streams in early spring. Leaves and stems taste best when cooked, especially in young plants.
• Willow: Young shoots are edible in spring.
• Coltsfoot: Leaves and flowering shoots are edible in spring and summer; often found on slopes, ravines, and in damp forests.

Mushrooms: powerful food source, serious risk

It is believed that there are around 7,000 species of mushrooms worldwide. Among them, about 200 species are edible and about 60 are commonly used as food.

Mushrooms are rich in protein and contain fats, carbohydrates, minerals, trace elements (phosphorus, potassium, calcium, manganese, copper, sulfur, zinc, and others), and vitamins A, B, B2, and C.

Mushrooms can be divided into edible, inedible, and poisonous.

Edible mushrooms

Examples include button mushroom, oyster mushroom, straw mushroom, shiitake, morels, chanterelles, porcini, truffles, sulphur shelf mushrooms, shaggy ink caps, black trumpet (“horn of plenty”), and certain russulas.

Inedible mushrooms

These are not poisonous but may have an unpleasant smell or taste and contain little nutritional value. One example is the false chanterelle.

Poisonous mushrooms

Europe has around 200 poisonous mushroom species, including various amanitas (fly agaric, panther cap, death cap, and others), satan’s bolete, and certain toxic funnel mushrooms, among many other dangerous species.

Wild plants: avoid dangerous mistakes

It is advised to avoid eating seeds, fruits, and bulbs that do not have a characteristic garlic or onion smell. Also avoid plants that produce milky sap when broken.

Sometimes edible fruit can be identified indirectly by bird droppings, torn peels, many pits or seeds near tree bases, and fallen fruit under trees. However, confusion is dangerous—mistaking a plant for an edible one may cause severe poisoning.

A classic plant safety test (U.S. Green Berets method)

1. Rub a small amount of the unknown plant between your fingers. Wait 15–20 minutes. If there is no burning sensation or redness, continue.
2. Place it on the inside of your elbow. Wait 15–20 minutes. If there is no irritation, continue.
3. Place it against your lips. Wait 15–20 minutes. If there is no irritation, continue.
4. Put a small piece in your mouth and chew without swallowing. Wait 15–20 minutes. If there is no burning, bitterness, or discomfort, continue.
5. Swallow a small amount. If after 15–20 minutes there is no nausea, dizziness, or worsening symptoms, you may consume a small amount as food.
6. The next day, if your condition has not worsened, you may use the plant as food.

Cooking reduces poison risk

To prevent poisoning, unknown fruits and tubers can be boiled thoroughly, since most plant toxins are destroyed by heat. For example, cassava tubers are extremely toxic raw but become safe and nutritious after proper heat treatment.

Cooking food without tools

Roots, tubers, fish, and small animals may be roasted without tools by placing them directly into hot coals—covered first with a layer of clay, foil, or leaves.

Water extraction and purification

Water is life itself. In the wilderness, you must find a source of water and—when needed—purify it from organic and inorganic impurities, or reduce salt if it is overly salty. You must also manage safe storage.

Types of natural water sources

• Open water sources: rivers, lakes, streams.
• Groundwater sources: underground reservoirs.
• Biological water sources: plants that store water and natural “water carriers” such as bamboo and certain cacti.
• Atmospheric water sources: rain, snow, dew, ice.

Can you drink water raw?

Water from rivers, streams, and springs can sometimes be drunk raw. However, before drinking water from ponds or stagnant reservoirs, it should be filtered and disinfected.

A simple homemade water filter

A basic filter can be made by using multiple layers of cloth or bandages, or using an empty can with 3–4 holes and filling it with sand.

You can also dig a shallow hole about 0.5 meters from the edge of a reservoir. After some time, it may fill with cleaner, clearer water.

Disinfection methods

For disinfection, iodine can be used: 8–10 drops per 1 liter of water. However, the most reliable method remains boiling.

Hydration rules when water is scarce

• Do not eat too much, especially meat.
• Avoid smoking.
• Prioritize water for sick people.
• To reduce thirst, take small sips and keep water longer in the mouth.
• During hot days, stay in the shade and avoid long exposure to the sun.
• Keep clothing and a hat on to protect your body and reduce sweating.