The choice of protein source in the eating window from intermittent fasting can have a major impact on satiety, body composition, and metabolic health.
In this article we compare four popular types of meat: Pig, beef, birdand sheep, from the perspective of nutritional value, fat profile and metabolic effects.
1. Pork (Romanian favorite!) — good protein, but in moderation
✅ Advantages:
- Complete source of protein, vitamin B1 (thiamine), B6, zinc
- More tender and tastier than other types
- Easy to find in various forms: chops, mussels, lean pulp
⚠️ Pay attention to:
- Higher content of saturated fat (especially in the neck, bacon)
- Processed pork (ham, sausages) — to be avoided completely
- Potentially inflammatory if it comes from industrial farms
Ideal for fasting:
Pork tenderloin (Montana), boneless cutlets or lean pulp cooked simply (in the oven, steam, grill), combined with vegetables rich in fiber:
- Broccoli— rich in fiber, vitamin C and detoxifying compounds (sulforaphane).
- Cauliflower— Versatile, easy to cook in steam or in the oven, supports digestion.
- Green beans— Satiety, crunchy, contains fiber and antioxidants.
- Carrots— natural sweetness, soluble fiber, good for transit and satiety.
2. Beef — Calorie-dense and Nutritious
✅ Advantages:
- Very rich in heme iron, zinc, vitamin B12, creatine
- Contains CLA (conjugated linoleic acid) — beneficial for fat burning
- Excellent for satiety, especially in OMAD or 18/6 protocols
⚠️ Pay attention to:
- Longer digestion time (red meat)
- More caloric — pay attention to portions if you have a weight loss goal
Ideal for fasting:
Mussel, pulp, lean antricot, slow-cooked or sous-vide to preserve nutrients.
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3. Poultry meat — versatile and “light” option
✅ Advantages:
- High in protein but low in fat (if skinless)
- Decent content of vitamin B3, B6 and selenium
- Easily digested, good for post-workout meals
⚠️ Pay attention to:
- Quality: many intensively raised birds contain antibiotic residues or hormones
- Poultry liver — very nutritious but rich in vitamin A (in moderation)
Ideal for fasting:
Grilled chicken or turkey breast, bone soup (for collagen and minerals), * occasional chicken liver.
*Chicken liver is highly nutritious, but consumed frequently can create a excess of certain vitamins and minerals. Excess vitamin A(from animal sources, not beta-carotene) accumulatesin the liver and can become Toxiclong-term (hypervitaminosis A).
4. Mutton (lamb) — flavorful, but rarely consumed
✅ Advantages:
- Good source of iron, zinc and healthy fats (especially omega-3 if grown on pasture)
- Contains taurine — supports cardiovascular function and nervous system
- Very satiating — small portions are enough
⚠️ Pay attention to:
- Harder to digest for some
- High calorie content (saturated fat)
- Not suitable on a daily basis — rather an occasional option
Ideal for fasting:
Grilled lamb chops, baked pulp with herbs and root vegetables.
Quick comparative table
Conclusion
All four types of meat can be included in a balanced diet under intermittent fasting, as long as you choose quality sources, simple preparations and combined with vegetables and healthy fats.
🔁 Varietyis the key. Alternate poultry meat with beef, and pork or mutton consume it in moderation. Listen to your body, experiment and adjust portions according to the type of fasting (OMAD, 16/8, etc.).
Beef is an excellent choice due to its nutritional density and high iron content, but sheep can also provide satiety if well tolerated.
Yes, if you choose lean pieces and cook it healthy. Fat neck and processed products are not recommended. Lean pork is comparable to beef in protein intake.
Probably both. 😄 Fasting brings out the strongest temptations — but also the greatest rewards if you stay!

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