A diet consisting of lean protein, fresh fruits and vegetables mimics the diets of our ancient ancestors and, proponents believe, best suits our genetics and digestion. Such a diet, embodied in the Paleo Diet Plan, can be very healthy, but challenging to stick to because it is so restrictive. The high protein content keeps you sated and you acquire tons of fiber and nutrients through fresh raw produce. The diet puts no limits on the amounts of fruit, vegetables and lean meat you may eat--but it does forbid the intake of any food that does not fall into those categories.
Eat unlimited amounts of lean cuts of meat. Focus on seafood, skinless white meat poultry, pork tenderloin, flank steak, bison and wild game. Trim away all visible fat.
Eat liberal amounts of fresh fruits and vegetables. Do not limit your intake of these items. Eat much of your produce raw to maximize nutritional value and fiber. Go for high-volume, low-calorie vegetables like lettuce, broccoli, cabbage and cauliflower.
Substitute healthy oils for butter, margarine and shortening. Use olive oil, flaxseed, nut oils and avocado oil to help decrease your intake of saturated fat. Make these natural, plant-based oils the basis of all fats in your diet.
Avoid foods that would not have been available to people in hunting and gathering times--this includes peanut butter, pasta or any other products containing flour. Forgo all grains, legumes (beans, peas and soy), dairy, refined sugar, starchy vegetables and coffee because these were not available to humans prior to the introduction of agriculture.
Stay away from yeast and salt. Do not eat baked goods, pickled foods, vinegar or food products that have gone through fermentation because these foods are not as quality of a source of fiber and B Vitamins as are fruits and vegetables. Season food with powdered garlic or onion, citrus juices, pepper, cayenne and chili powder or other natural spices which enhance health and do not cause bloating as does salt.
The first month of the diet can be challenging as your body becomes accustomed to a new way of eating. You might find your energy dips as you adjust to making fruits and vegetables your primary source of carbohydrates.
No scientific data supports the long-term adherence to this diet. In general, the recommendations are healthy, but you might become deficient in specific nutrients because of the lack of whole grains and dairy.