question: many people would depend upon muscle building products which include energy source drinks in order to gain weight. the issue with such products and solutions is really because they possess caffeine, a potent form of drug which has dangerous negative effects on the central nervous system.
Capitalize this past sentence correctly.
A: Many people would depend upon muscle building products which include energy source drinks in order to gain weight. The issue with such products and solutions is really because they possess caffeine, a potent form of drug which has dangerous negative effects on the central nervous system.

question: medium mode - lower quality but increased performance.
Capitalize this past sentence correctly.
A: MEDIUM mode - Lower quality but increased performance.

question: the klimaglas product family has been developed especially for these requirements. the premium semco glass has a totally transparent coating.
Capitalize this past sentence correctly.
A: The Klimaglas product family has been developed especially for these requirements. The premium Semco glass has a totally transparent coating.