ISSA Nutritionist Practice Exam 2025 - Complete Preparation Guide

An ovo-vegetarian diet includes a specific set of food choices that align with the principles of vegetarianism while allowing for the consumption of eggs. Those following an ovo-vegetarian diet enjoy a wide variety of plant-based foods, including fruits, vegetables, grains, legumes, nuts, and seeds, along with eggs as their primary animal product.

This dietary choice excludes all types of meat and seafood, thus making it clear that the individual does not consume any form of flesh. It also differentiates from a lacto-vegetarian diet, which includes dairy products but not eggs. Therefore, the inclusion of eggs in the diet allows for increased protein intake and additional nutrients, making it a balanced option for those who do not want to consume dairy or meat.

Consequently, the other options do not accurately represent the ovo-vegetarian dietary framework. Only plant-based foods would exclude eggs, while foods containing dairy products contradict the definition of an ovo-vegetarian. Similarly, meat and seafood are not consumed in any form by someone following this diet.