Table 3 Ketogenic Diet plan. Table summarizes the diet schedule for divers. For each meal of the day recommended food are precisely reported. Additional special food protein and fibers based produced by Tisanoreica (Gianluca Mech SpA, Italy) are included in the program. Tisanoreica Alimentary Portion (TAP) is the unit of measurement used to define the amount of amino acids contained in each food preparation. Each Tisanoreica Alimentary Portion contains about 19 grams of protein (obtained from milk, eggs, peas, soy) equivalent to 1 TAP.

Breakfast

1 or 2 cups of coffee or tea without sugar (stevia and aspartame are allowed) + 1 Tisanoreica Alimentary Portion (TAP)

Snack (mid-morning or afternoon)

1 or 2 cups of coffee or tea without sugar or sweetener + 1 Tisanoreica Alimentary Portion (TAP)

Lunch (lunch and dinner can be reverse)

• 2 oz of Tisanoreica Tisanopasta Fusilli, Penne or Rice (2 TAP);

• raw or cooked vegetables chosen from asparagus, beetroot, broccoli, artichokes, thistle, chicory, palm-hearts, cauliflower, cabbage, Brussels sprouts, cucumbers, sauerkraut, sorrel, turnips, water-cress, fennel, cultivated mushrooms, soy sprouts (fresh), endive, salad (Belgian, lettuce, escarole, curly endive, valerian, etc.), eggplant, leeks, radicchio (green), radishes, rocket, celery, spinach, Savoy cabbage, truffles, zucchini.

Dinner (lunch and dinner can be reverse)

• Choose an alternative: - 0.22 lb of meat with no visible fat chosen from: chicken, turkey, rabbit, veal, beef, foal, frog, quail, pheasant, duck, lamb, Guinea fowl; - 0.33 lb of clean fish at your choice from: cod, tuna (fresh, in oil or in brine), mackerel, carp, sole, pike, grouper, bass, scorpion fish, squid, ink-fish, ray, dentex, salmon, gilthead, lobster, mullet, turbot, smooth hound, octopus, anchovy, clams, crab, shrimps, mussels, oysters; - 0.13 lb of cold meats (air-cured beef, carpaccio, defatted raw ham); - 2 eggs;

• Cooked or fresh vegetables at pleasure (see lunch).