. . . . . . "by Burton Goldberg, page 524The elderly generally are deficient in Calories, Protein, Iron, Vitamins A and C, Calcium, the B-Complex, especially B-12 and folic acid, and he is with 70% of the elderly in institutions where the diets are carefully planned.Anti-Aging Manual by Joseph B Marion, page 315Low levels of folic acid, v" . . . .