Kiperin You can safely use our collagen whenever you want, whether you're hungry or full. This depends entirely on your active lifestyle and your personal preference. To experience the beauty and health results, you can fill our measuring spoon that comes with the product up to the "-10 g" mark at any time of the day and mix it with any food or drink you like (coffee, tea varieties, smoothies, fruit juice, milk, kefir, salep, boza, hot chocolate, cake, pastries, soup, etc.) and enjoy it. You can also experience the dieting results, i.e., feeling full, by taking it at any time of the day.😌 However, to experience more effective dieting results, i.e., if your goal is to lose weight by burning fat, we recommend consuming it with coffee or green tea on an empty stomach in the morning and not eating anything for a while (2-3 hours).😌 Collagen