kins University, Baltimore, and the USDA, however, found that three-day-old 52.broccoli seedlings contain a concentrated amount of SGS -- 20 times the amount found in broccoli -- so only 53.an ounce provides the same benefits. Sold as BroccoSprouts, the seedlings are grown under controlled conditions to ensure SGS content, and can be 10 used on salads, sandwiches and omelets for a “zingy” taste. They have been patented by John Hopkins University, and 19 growers nationwide are licensed to grow them. BroccoSprouts are available in select grocery and health food stores nationwide.