The phrase "advising them about" is correct and usable in written English.
You can use it when discussing the act of providing guidance or recommendations to someone regarding a specific topic or issue.
Example: "The consultant is advising them about the best practices for improving their marketing strategy."
Alternatives: "counseling them on" or "guiding them regarding".
The researchers also sent letters to the patients' primary doctors, advising them about ways to help.
That is when she called at comrade Mnangagwa's ministry advising them about the break-in and her condition.
This happened after baseball and the players association sent separate notices to the teams advising them about the process.
He saw nothing odd or improper in dealing with the most exalted subjects and then turning to the more ordinary task of telling students to avoid jargon and cliches, and advising them about quotations and footnotes.
Adults avoid talking to youngsters about budgeting, saving and giving to charity in much the same way that they recoil from advising them about sex, according to a survey released yesterday.
Johnson & Johnson sent a letter to doctors on Monday night advising them about rare cases of life-threatening blood clots linked to its new drug-coated stent, a fast-selling device used to keep blood flowing through the arteries.
"We will advise them about design," he said, "and help them with content and digital strategies".
He advises them about some of the new rules, and tells them to forget about the glory of th past.
She would be expected to be their advocate, ensuring they receive the benefits they are entitled to, and advise them about budget keeping.
In the meantime, we're in the process of contacting our clients on Nauru to advise them about their legal options.
This was in part the consequence of intensifying competition but, above all, of their dependency upon auction houses that they trusted to advise them about prices or artistic merit.
