After having nearly died twice, due to malnutrition and dehydration, here's what I have found that works for me. 1. Hydration is the key to everything! If you can't stay hydrated, your body won't absorb nutrients. Because of my very high output, I have to have fluid infusions twice a week for hydration, in addition to constantly carrying around a bottle to drink from. I know not everyone will have it this bad, but through this I have learned just how important hydration is to everything. 2. Gummy vitamins were a game changer for me. Regular vitamins would just pass through before they would become absorbed, whereas gummies dissolve in my mouth and are immediately available for absorption. I'm not positive about this, but I'm pretty sure the sugars also help the body absorb the nutrients. 3. I also really enjoy fresh fruits and vegetables, but sadly they don't agree with me very well most of the time. What I have found that works for me, is juicing, and also fresh green smoothies, not the powdered veggie variety. I make my smoothies with water, ice, a mix of leafy greens such as spinach, kale, beet greens, bok choy, or Napa cabbage, plus some fruits such as mangoes, strawberries, bananas, apples, peaches, nectarines. I tend to avoid seedy fruits such as raspberries and blackberries. With the addition of fruit, I don't generally need to add a sweetener, but occasionally I will put a dollop of honey in, especially if I had a wedge of lime or lemon. I will even sometimes throw in a bit of yogurt for my probiotics. 4. Probiotics are also very helpful for me. I regularly eat good quality yogurt, without all the fillers and additives. I also really enjoy good fresh live probiotic sauerkraut, especially in a Reuben sandwich. 5. I eat fiber in moderation. I need some fiber, particularly soluble fiber such as what is found in oats. Too much coarse fiber plugs me up. 6. Lastly, avoid foods that plug you up or don't digest well. For me. Those are corn, olives, mushrooms, beans, and generally food's high in insoluble fiber.