In a medium pan over high heat, bring broth and rice to a boil. Reduce heat, cover, and simmer until rice is tender to bite, 15 to 20 minutes. Add salt and pepper to taste. Remove from heat.
In a bowl, whisk eggs, lemon juice, and 1/4 cup water to blend. Gradually whisk in about a cup of the hot broth mixture. Then gradually whisk egg mixture into broth and rice mixture. Stir over low heat just until hot, 1 to 3 minutes; don't boil or soup may curdle. Ladle into bowls.
Note: Nutritional analysis is per serving.