मिताहारं विना यस्तु योगारम्भः तु कारयेत्।
नानारोगो भवेत्तस्य किञ्चिद्योगो न सिध्यति ॥१६॥
He who practices Yogic exercises without moderation of diet, incurs various diseases, and obtains no success of any kind.
Moderation of diet is very important in Yogic exercises, dhyana or in any type of sadhana. If this is missed, success of any kind is not possible.
When Yogic exercises are performed as just another way of aerobic exercise, we not only incur any benefit but also damage body severely.