In one sentence, describe what the following article is about:

Collagen powder is popular among Paleo and ketogenic diets because of its high protein content. Using collagen powder is an easy way to add this vital nutrient to your daily meals. This is a great idea if you work out or play sports, as the protein in collagen helps build and restore muscles. Collagen powder is said to reduce cravings, especially for sweet foods. Protein helps regulate blood sugar level, and sugar cravings are often caused from blood sugar fluctuations. By using collagen powder, you may be able to balance your cravings and kick them to the curb. This over time can help you lose weight, if paired with healthy eating and regular exercise. In general, collagen powder may help reduce inflammation in joints across the body. The added nutrients help promote bone health. Consider using collagen powder if you suffer from widespread joint pain or osteoarthritis. For instance, this can help athletes with sore, achy bones. While using skincare products with collagen helps target particular areas, adding collagen powder to your diet can help hydrate the skin overall. Using collagen powder can also help your skin produce collagen naturally, which decreases wrinkles. Results may take up to 8 weeks. There are 2 different types of collagen powder, though both are very rewarding. Collagen peptides work great for skin, bone, and digestive health. Collagen powder is most effective for gut health and improving sleep quality. As a whole, collagen peptides is easiest to digest and retain the nutrients.  Use collagen protein if you want a gelatin substitute. The gel-like consistency of collagen protein works great when cooking in breakfast and desserts. Go with collagen peptides if mixing with cold liquids. Collagen peptides work well to make things like smoothies and soups.

Summary:
Add collagen powder to your diet if you want to increase protein intake. Give collagen a try if you want to reduce cravings and lose weight. Supplement with collagen if you want to reduce joint inflammation. Try using collagen to improve overall skin health. Choose to use either collagen protein or collagen peptides.