Rick I am not 100% sure I understand your question. Low carbohydrates won't be a food source, but rather about portion size. Anything can be low carbs ranging from a huge steak to a very tiny slice of bread.
Eat healthy carbs and avoid refined flours and sugars.
Consume adequate fiber.
Time a large percentage of your daily carbs before and after your workout when your body will use it most effectively.
Always consume carbs with a protein source.
James 1:16-17 ESV
Do not be deceived, my beloved brothers. Every good gift and every perfect gift is from above, coming down from the Father of lights
With God's help...Mens sana in corpore sano