Text: determining factors for quickness are the reaction speed, quickness (accelerating power) and quickness endurance.

Correct capitalization: Determining factors for quickness are the reaction speed, quickness (accelerating power) and quickness endurance.

Text: the analysis digs deeper than that, as it provides you with information on the reviews.

Correct capitalization: The analysis digs deeper than that, as it provides you with information on the reviews.

Text: children har very vulnerable to the detrimental

Correct capitalization: Children har very vulnerable to the detrimental

Text: l-arginine is a protein-producing amino acid

Correct capitalization:
L-arginine is a protein-producing amino acid