Oats are for goats, humans should not eat them. Like you say too high in carbs you might as well eat a candy bar.
Doctor Johnson proposed to define the word ‘oats’ thus: ‘A grain which in England is generally given to horses, but in Scotland supports the people.’ And I replied: ‘Aye, and that’s why England has such fine horses, and Scotland such fine people.’
—James Boswell, The Life of Samuel Johnson, LL.D., ch. 14 (1791)
Mares eat oats and does eat oats...
OATS--A grain which in England is generally given to horses, but in Scotland supports the people.