Absolutely, your statement reflects core Jain principles about the greatness of "Tap" (austerity or penance). In Jainism, "Tap" is highly revered as one of the principal means of purifying the soul and conquering passions (kasayas) and sensual pleasures, including the urge for food (aaharsangna).

According to Jain philosophy:

• Tap (Tapa) consists of external (bahya tap) and internal (antarang tap) austerities. Both are essential for spiritual progress.
• True Tap allows an individual to master desires and attachments, especially those related to food and sensory pleasures (aaharsangna).
• By practicing Tap, one gradually overcomes the bondage of karma and moves closer to liberation (moksha).

Jain scriptures and Acharyas have praised Tap as a supreme virtue, stating that those who sincerely practice it can conquer not only physical desires but also subtle inner passions.

So, yes, Tap gives the practitioner victory over desires related to food (aaharsangna) and thus helps in spiritual upliftment.