The essential amino acid that are found only in meat protein are just that, essential.

Aluminum is a brain toxin. Zinc is needed but in a very small amount. Iron is needed for proper blood function.

It is rare to find aluminum in vitamins. There is no reason for it to be there. Aluminum is very common in antiperspirants. It is also used in vaccines as a adjutant to cause an immune system reaction to the vaccine.

The studies show a markedly smaller brain mass development in vegan and vegetarian diets.

Ovo-lacto-vegetarians can get a lot of what they need. Omega-3's are hard to find in a vegan formula. The algae based formulas have very limited potency. There have been strict rulings by the FDA and Canadian authorities about promoting algae based supplements due to their low nutritional value compared to their cost. If the cost per nutritional unit is high, the authorities consider it a drug and not a food supplement. Plus, the microcystin-related health risk has not been resolved even though microcystin levels have been found to be low.