There can be a lot of issues like there can be numerous digestive complaints due to wrong or untimely food habits. There are many people having different requirements and goals e.g. those who want to perform better or improve their athletic performance, those who are either always hungry or never hungry, those who always feel fatigued even when sleeping a good 8 plus hours and those who fall sick very often. Women who are pregnant or are thinking of getting pregnant or experiencing hormonal issues can also consult a dietitian online. Patients diagnosed with suspected food allergies or intolerances or any sensitivities can also seek help of a dietitian. And the most common are those people who want to lose or gain weight.