The more deductions you claim, the less a bank will lend to you?

[Jeffrey Magenes]

Would it necessarily be true that the more deductions you claim on your tax return the less a bank will lend to you because of your lower taxable income?

So therefore, isn't this technically a catch 22 situation where you would like to claim more deductions but technically shouldn't if you would like to buy a property in the future because the bank will lend you less money because of the reduction in your taxable income?