Final answer:
Vegans are the type of vegetarians most likely to have inadequate vitamins and minerals in their diet due to the exclusion of all animal products.
Step-by-step explanation:
The type of vegetarian most likely to have inadequate vitamins and minerals in the diet is vegan.
Vegans avoid all animal products, including meat, eggs, and dairy products. As a result, their diet may not provide adequate amounts of certain nutrients, such as vitamin B12, iron, calcium, and omega-3 fatty acids.
To ensure they meet their nutritional needs, vegans should consume a variety of plant-based foods and may need to consider fortified foods or dietary supplements to obtain adequate levels of these nutrients.