Dylan is on a strict vegan diet. he doesn’t consume meat, fish, eggs, or dairy products. which nutrient is difficult to obtain naturally from a vegan diet? a. vitamin a b. vitamin b3 c. vitamin b12 d. vitamin c e. vitamin e

Option C , vitamin B12

Explanation:

The major source of B12 vitamin is are  fish,  eggs, milk, and milk products, meat, poultry etc. Hence, if a person starts to take completely vegan diet he/she will not get vitamin B12.

Rest all vitamins can be obtained from vegan diet

Vitamin A can be obtained from - Orange & yellow vegetables, fruits, broccoli, spinach, and dark green, leafy vegetables.

vitamin B3 - Can be obtained from green leafy vegetables, coffee, and tea

Vitamin C -  Can be obtained from kiwi, lemon, guava, grapefruit, and vegetables

Vitamin E - Can be obtained from nuts, such as almonds, peanuts and hazelnuts, and vegetable

this protocol provides a detailed procedure for co-immunoprecipitation (co-ip) to identify protein–protein interactions.