Onion powder offers benefits like boosting immunity, improving heart and digestive health, regulating blood sugar, and fighting inflammation, thanks to its antioxidants (quercetin, anthocyanins) and sulfur compounds, while also being a convenient source of nutrients, adding flavor, and supporting bone health. It aids digestion by promoting gut health and reducing bloating, helps control blood pressure, and provides minerals like iron, calcium, and B vitamins, though fresh onions are richer in some nutrients. 

Garlic powder offers benefits like boosting immunity, supporting heart health by lowering blood pressure and cholesterol, fighting inflammation, and providing antioxidants, thanks to compounds like allicin, making it a convenient way to add flavor and health benefits (antimicrobial, detox) to foods. 

lemon powder offers benefits like boosting immunity and skin health due to its Vitamin C, supporting digestion with its acidity, and aiding heart health and weight management through antioxidants and flavonoids, all while providing a convenient, long-lasting citrus flavor for foods and drinks. It also helps detoxify the body, fight inflammation, and can improve oral hygiene by reducing bacteria.