A decrease in foot seating can also be assign that diabetic nerve damage is occurring in the nerves that control sweating. They just don’t work normally. However, foot sweating also tends to decrease as we age, especially if we become less active. Wearing different shoes or socks can affect foot sweating, too. You may have recently started wearing shoes that do not hold in moisture, so your feet are drier.
The problem with a decrease in foot sweating, whatever the cause, is that the foot skin tends to become very dry and prone to cracking. It is a good idea to use a moisturizing cream or lotion on your feet (but not between the toes) if you have dry skin.