. Provide adequate spacing. In addition to these four main lettuce types, a fifth variety of lettuce, called asparagus lettuce or celtuce, is grown for its thick stems that are commonly used in Chinese cuisines. KETOASK result: is romaine lettuce keto ⇦ BACK TO SEARCH CAN ROMAINE LETTUCE FIT INTO KETO DIET? Space romaine plants at least 12 inches (30 cm.) Giving romaine lettuce plenty of room to grow results in larger heads. Romaine Lettuce makes up about 1 gram of net carbohydrates per 3.5 ounces (100 grams), which makes it an excellent leafy vegetable to fit into both levels of the ketogenic diet: Standard and Low-Carb. Avoid planting romaine lettuce in midday sun. Instead, transplant romaine seedlings on a cloudy day or in the evening to prevent the plants from dehydrating and to reduce transplant shock. This outbreak appears to be o The four common types of lettuce based on the shape, texture, and uses include Crisphead, Butterhead, Romaine, and Loose-Leaf Lettuce. CDC, public health and regulatory officials in several states, Canada External, and the U.S. Food and Drug Administration (FDA) External investigated a multistate outbreak of Shiga toxin-producing Escherichia coli O157:H7 (E. coli O157:H7) infections linked to romaine lettuce from the Central Coastal growing regions in northern and central California. apart.